Character  |  API reference  |  Android Developers (original) (raw)

class Character : Comparable<Char!>, Serializable

The Character class wraps a value of the primitive type char in an object. An object of class Character contains a single field whose type is char.

In addition, this class provides several methods for determining a character's category (lowercase letter, digit, etc.) and for converting characters from uppercase to lowercase and vice versa.

Character information is based on the Unicode Standard

The methods and data of class Character are defined by the information in the UnicodeData file that is part of the Unicode Character Database maintained by the Unicode Consortium. This file specifies various properties including name and general category for every defined Unicode code point or character range.

The file and its description are available from the Unicode Consortium at:

• http://www.unicode.org

Unicode Conformance

The fields and methods of class Character are defined in terms of character information from the Unicode Standard, specifically the UnicodeData file that is part of the Unicode Character Database. This file specifies properties including name and category for every assigned Unicode code point or character range. The file is available from the Unicode Consortium at http://www.unicode.org.

Character information is based on the Unicode Standard, version 15.0.

The Java platform has supported different versions of the Unicode Standard over time. Upgrades to newer versions of the Unicode Standard occurred in the following Java releases, each indicating the new version:

Shows Java releases and supported Unicode versions

Variations from these base Unicode versions, such as recognized appendixes, are documented elsewhere.

Unicode Character Representations

The char data type (and therefore the value that a Character object encapsulates) are based on the original Unicode specification, which defined characters as fixed-width 16-bit entities. The Unicode Standard has since been changed to allow for characters whose representation requires more than 16 bits. The range of legal _code point_s is now U+0000 to U+10FFFF, known as Unicode scalar value. (Refer to the definition of the U+n notation in the Unicode Standard.)

The set of characters from U+0000 to U+FFFF is sometimes referred to as the Basic Multilingual Plane (BMP). Characters whose code points are greater than U+FFFF are called _supplementary character_s. The Java platform uses the UTF-16 representation in char arrays and in the String and StringBuffer classes. In this representation, supplementary characters are represented as a pair of char values, the first from the high-surrogates range, (\uD800-\uDBFF), the second from the low-surrogates range (\uDC00-\uDFFF).

A char value, therefore, represents Basic Multilingual Plane (BMP) code points, including the surrogate code points, or code units of the UTF-16 encoding. An int value represents all Unicode code points, including supplementary code points. The lower (least significant) 21 bits of int are used to represent Unicode code points and the upper (most significant) 11 bits must be zero. Unless otherwise specified, the behavior with respect to supplementary characters and surrogate char values is as follows:

• The methods that only accept a char value cannot support supplementary characters. They treat char values from the surrogate ranges as undefined characters. For example, Character.isLetter('\u005CuD840') returns false, even though this specific value if followed by any low-surrogate value in a string would represent a letter.
• The methods that accept an int value support all Unicode characters, including supplementary characters. For example, Character.isLetter(0x2F81A) returns true because the code point value represents a letter (a CJK ideograph).

In the Java SE API documentation, Unicode code point is used for character values in the range between U+0000 and U+10FFFF, and Unicode code unit is used for 16-bit char values that are code units of the UTF-16 encoding. For more information on Unicode terminology, refer to the Unicode Glossary.

Summary

Constants

BYTES

static val BYTES: Int

The number of bytes used to represent a char value in unsigned binary form.

Value: 2

COMBINING_SPACING_MARK

static val COMBINING_SPACING_MARK: Byte

General category "Mc" in the Unicode specification.

Value: 8

CONNECTOR_PUNCTUATION

static val CONNECTOR_PUNCTUATION: Byte

General category "Pc" in the Unicode specification.

Value: 23

CONTROL

static val CONTROL: Byte

General category "Cc" in the Unicode specification.

Value: 15

CURRENCY_SYMBOL

static val CURRENCY_SYMBOL: Byte

General category "Sc" in the Unicode specification.

Value: 26

DASH_PUNCTUATION

static val DASH_PUNCTUATION: Byte

General category "Pd" in the Unicode specification.

Value: 20

DECIMAL_DIGIT_NUMBER

static val DECIMAL_DIGIT_NUMBER: Byte

General category "Nd" in the Unicode specification.

Value: 9

DIRECTIONALITY_ARABIC_NUMBER

static val DIRECTIONALITY_ARABIC_NUMBER: Byte

Weak bidirectional character type "AN" in the Unicode specification.

Value: 6

DIRECTIONALITY_BOUNDARY_NEUTRAL

static val DIRECTIONALITY_BOUNDARY_NEUTRAL: Byte

Weak bidirectional character type "BN" in the Unicode specification.

Value: 9

DIRECTIONALITY_COMMON_NUMBER_SEPARATOR

static val DIRECTIONALITY_COMMON_NUMBER_SEPARATOR: Byte

Weak bidirectional character type "CS" in the Unicode specification.

Value: 7

DIRECTIONALITY_EUROPEAN_NUMBER

static val DIRECTIONALITY_EUROPEAN_NUMBER: Byte

Weak bidirectional character type "EN" in the Unicode specification.

Value: 3

DIRECTIONALITY_EUROPEAN_NUMBER_SEPARATOR

static val DIRECTIONALITY_EUROPEAN_NUMBER_SEPARATOR: Byte

Weak bidirectional character type "ES" in the Unicode specification.

Value: 4

DIRECTIONALITY_EUROPEAN_NUMBER_TERMINATOR

static val DIRECTIONALITY_EUROPEAN_NUMBER_TERMINATOR: Byte

Weak bidirectional character type "ET" in the Unicode specification.

Value: 5

DIRECTIONALITY_FIRST_STRONG_ISOLATE

static val DIRECTIONALITY_FIRST_STRONG_ISOLATE: Byte

Weak bidirectional character type "FSI" in the Unicode specification.

Value: 21

DIRECTIONALITY_LEFT_TO_RIGHT

static val DIRECTIONALITY_LEFT_TO_RIGHT: Byte

Strong bidirectional character type "L" in the Unicode specification.

Value: 0

DIRECTIONALITY_LEFT_TO_RIGHT_EMBEDDING

static val DIRECTIONALITY_LEFT_TO_RIGHT_EMBEDDING: Byte

Strong bidirectional character type "LRE" in the Unicode specification.

Value: 14

DIRECTIONALITY_LEFT_TO_RIGHT_ISOLATE

static val DIRECTIONALITY_LEFT_TO_RIGHT_ISOLATE: Byte

Weak bidirectional character type "LRI" in the Unicode specification.

Value: 19

DIRECTIONALITY_LEFT_TO_RIGHT_OVERRIDE

static val DIRECTIONALITY_LEFT_TO_RIGHT_OVERRIDE: Byte

Strong bidirectional character type "LRO" in the Unicode specification.

Value: 15

DIRECTIONALITY_NONSPACING_MARK

static val DIRECTIONALITY_NONSPACING_MARK: Byte

Weak bidirectional character type "NSM" in the Unicode specification.

Value: 8

DIRECTIONALITY_OTHER_NEUTRALS

static val DIRECTIONALITY_OTHER_NEUTRALS: Byte

Neutral bidirectional character type "ON" in the Unicode specification.

Value: 13

DIRECTIONALITY_PARAGRAPH_SEPARATOR

static val DIRECTIONALITY_PARAGRAPH_SEPARATOR: Byte

Neutral bidirectional character type "B" in the Unicode specification.

Value: 10

DIRECTIONALITY_POP_DIRECTIONAL_FORMAT

static val DIRECTIONALITY_POP_DIRECTIONAL_FORMAT: Byte

Weak bidirectional character type "PDF" in the Unicode specification.

Value: 18

DIRECTIONALITY_POP_DIRECTIONAL_ISOLATE

static val DIRECTIONALITY_POP_DIRECTIONAL_ISOLATE: Byte

Weak bidirectional character type "PDI" in the Unicode specification.

Value: 22

DIRECTIONALITY_RIGHT_TO_LEFT

static val DIRECTIONALITY_RIGHT_TO_LEFT: Byte

Strong bidirectional character type "R" in the Unicode specification.

Value: 1

DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC

static val DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC: Byte

Strong bidirectional character type "AL" in the Unicode specification.

Value: 2

DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING

static val DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING: Byte

Strong bidirectional character type "RLE" in the Unicode specification.

Value: 16

DIRECTIONALITY_RIGHT_TO_LEFT_ISOLATE

static val DIRECTIONALITY_RIGHT_TO_LEFT_ISOLATE: Byte

Weak bidirectional character type "RLI" in the Unicode specification.

Value: 20

DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE

static val DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE: Byte

Strong bidirectional character type "RLO" in the Unicode specification.

Value: 17

DIRECTIONALITY_SEGMENT_SEPARATOR

static val DIRECTIONALITY_SEGMENT_SEPARATOR: Byte

Neutral bidirectional character type "S" in the Unicode specification.

Value: 11

DIRECTIONALITY_UNDEFINED

static val DIRECTIONALITY_UNDEFINED: Byte

Undefined bidirectional character type. Undefined char values have undefined directionality in the Unicode specification.

Value: -1

DIRECTIONALITY_WHITESPACE

static val DIRECTIONALITY_WHITESPACE: Byte

Neutral bidirectional character type "WS" in the Unicode specification.

Value: 12

ENCLOSING_MARK

static val ENCLOSING_MARK: Byte

General category "Me" in the Unicode specification.

Value: 7

END_PUNCTUATION

static val END_PUNCTUATION: Byte

General category "Pe" in the Unicode specification.

Value: 22

FINAL_QUOTE_PUNCTUATION

static val FINAL_QUOTE_PUNCTUATION: Byte

General category "Pf" in the Unicode specification.

Value: 30

FORMAT

static val FORMAT: Byte

General category "Cf" in the Unicode specification.

Value: 16

INITIAL_QUOTE_PUNCTUATION

static val INITIAL_QUOTE_PUNCTUATION: Byte

General category "Pi" in the Unicode specification.

Value: 29

LETTER_NUMBER

static val LETTER_NUMBER: Byte

General category "Nl" in the Unicode specification.

Value: 10

LINE_SEPARATOR

static val LINE_SEPARATOR: Byte

General category "Zl" in the Unicode specification.

Value: 13

LOWERCASE_LETTER

static val LOWERCASE_LETTER: Byte

General category "Ll" in the Unicode specification.

Value: 2

MATH_SYMBOL

static val MATH_SYMBOL: Byte

General category "Sm" in the Unicode specification.

Value: 25

MAX_CODE_POINT

static val MAX_CODE_POINT: Int

The maximum value of a Unicode code point, constant U+10FFFF.

Value: 1114111

MAX_HIGH_SURROGATE

static val MAX_HIGH_SURROGATE: Char

The maximum value of a Unicode high-surrogate code unit in the UTF-16 encoding, constant '\u005CuDBFF'. A high-surrogate is also known as a leading-surrogate.

Value: 56319

MAX_LOW_SURROGATE

static val MAX_LOW_SURROGATE: Char

The maximum value of a Unicode low-surrogate code unit in the UTF-16 encoding, constant '\u005CuDFFF'. A low-surrogate is also known as a trailing-surrogate.

Value: 57343

MAX_SURROGATE

static val MAX_SURROGATE: Char

The maximum value of a Unicode surrogate code unit in the UTF-16 encoding, constant '\u005CuDFFF'.

Value: 57343

MAX_VALUE

static val MAX_VALUE: Char

The constant value of this field is the largest value of type char, '\u005CuFFFF'.

Value: 65535

MIN_CODE_POINT

static val MIN_CODE_POINT: Int

The minimum value of a Unicode code point, constant U+0000.

Value: 0

MIN_HIGH_SURROGATE

static val MIN_HIGH_SURROGATE: Char

The minimum value of a Unicode high-surrogate code unit in the UTF-16 encoding, constant '\u005CuD800'. A high-surrogate is also known as a leading-surrogate.

Value: 55296

MIN_LOW_SURROGATE

static val MIN_LOW_SURROGATE: Char

The minimum value of a Unicode low-surrogate code unit in the UTF-16 encoding, constant '\u005CuDC00'. A low-surrogate is also known as a trailing-surrogate.

Value: 56320

MIN_SURROGATE

static val MIN_SURROGATE: Char

The minimum value of a Unicode surrogate code unit in the UTF-16 encoding, constant '\u005CuD800'.

Value: 55296

MIN_VALUE

static val MIN_VALUE: Char

The constant value of this field is the smallest value of type char, '\u005Cu0000'.

Value: 0

MODIFIER_LETTER

static val MODIFIER_LETTER: Byte

General category "Lm" in the Unicode specification.

Value: 4

MODIFIER_SYMBOL

static val MODIFIER_SYMBOL: Byte

General category "Sk" in the Unicode specification.

Value: 27

NON_SPACING_MARK

static val NON_SPACING_MARK: Byte

General category "Mn" in the Unicode specification.

Value: 6

OTHER_LETTER

static val OTHER_LETTER: Byte

General category "Lo" in the Unicode specification.

Value: 5

OTHER_NUMBER

static val OTHER_NUMBER: Byte

General category "No" in the Unicode specification.

Value: 11

OTHER_PUNCTUATION

static val OTHER_PUNCTUATION: Byte

General category "Po" in the Unicode specification.

Value: 24

OTHER_SYMBOL

static val OTHER_SYMBOL: Byte

General category "So" in the Unicode specification.

Value: 28

PARAGRAPH_SEPARATOR

static val PARAGRAPH_SEPARATOR: Byte

General category "Zp" in the Unicode specification.

Value: 14

PRIVATE_USE

static val PRIVATE_USE: Byte

General category "Co" in the Unicode specification.

Value: 18

SIZE

static val SIZE: Int

The number of bits used to represent a char value in unsigned binary form, constant 16.

Value: 16

SPACE_SEPARATOR

static val SPACE_SEPARATOR: Byte

General category "Zs" in the Unicode specification.

Value: 12

START_PUNCTUATION

static val START_PUNCTUATION: Byte

General category "Ps" in the Unicode specification.

Value: 21

SURROGATE

static val SURROGATE: Byte

General category "Cs" in the Unicode specification.

Value: 19

TITLECASE_LETTER

static val TITLECASE_LETTER: Byte

General category "Lt" in the Unicode specification.

Value: 3

UNASSIGNED

static val UNASSIGNED: Byte

General category "Cn" in the Unicode specification.

Value: 0

UPPERCASE_LETTER

static val UPPERCASE_LETTER: Byte

General category "Lu" in the Unicode specification.

Value: 1

Public constructors

Character

Character(value: Char)

Deprecated: It is rarely appropriate to use this constructor. The static factory [valueOf(char)](#valueOf%28kotlin.Char%29) is generally a better choice, as it is likely to yield significantly better space and time performance.

Constructs a newly allocated Character object that represents the specified char value.

Public methods

charCount

static fun charCount(codePoint: Int): Int

Determines the number of char values needed to represent the specified character (Unicode code point). If the specified character is equal to or greater than 0x10000, then the method returns 2. Otherwise, the method returns 1.

This method doesn't validate the specified character to be a valid Unicode code point. The caller must validate the character value using [isValidCodePoint](#isValidCodePoint%28kotlin.Int%29) if necessary.

charValue

fun charValue(): Char

Returns the value of this Character object.

codePointAt

static fun codePointAt(
    a: CharArray!,
    index: Int
): Int

Returns the code point at the given index of the char array. If the char value at the given index in the char array is in the high-surrogate range, the following index is less than the length of the char array, and the char value at the following index is in the low-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at the given index is returned.

codePointAt

static fun codePointAt(
    a: CharArray!,
    index: Int,
    limit: Int
): Int

Returns the code point at the given index of the char array, where only array elements with index less than limit can be used. If the char value at the given index in the char array is in the high-surrogate range, the following index is less than the limit, and the char value at the following index is in the low-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at the given index is returned.

codePointAt

static fun codePointAt(
    seq: CharSequence,
    index: Int
): Int

Returns the code point at the given index of the CharSequence. If the char value at the given index in the CharSequence is in the high-surrogate range, the following index is less than the length of the CharSequence, and the char value at the following index is in the low-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at the given index is returned.

codePointBefore

static fun codePointBefore(
    a: CharArray!,
    index: Int
): Int

Returns the code point preceding the given index of the char array. If the char value at (index - 1) in the char array is in the low-surrogate range, (index - 2) is not negative, and the char value at (index - 2) in the char array is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.

codePointBefore

static fun codePointBefore(
    a: CharArray!,
    index: Int,
    start: Int
): Int

Returns the code point preceding the given index of the char array, where only array elements with index greater than or equal to start can be used. If the char value at (index - 1) in the char array is in the low-surrogate range, (index - 2) is not less than start, and the char value at (index - 2) in the char array is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.

codePointBefore

static fun codePointBefore(
    seq: CharSequence,
    index: Int
): Int

Returns the code point preceding the given index of the CharSequence. If the char value at (index - 1) in the CharSequence is in the low-surrogate range, (index - 2) is not negative, and the char value at (index - 2) in the CharSequence is in the high-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at (index - 1) is returned.

codePointCount

static fun codePointCount(
    a: CharArray!,
    offset: Int,
    count: Int
): Int

Returns the number of Unicode code points in a subarray of the char array argument. The offset argument is the index of the first char of the subarray and the count argument specifies the length of the subarray in chars. Unpaired surrogates within the subarray count as one code point each.

codePointCount

static fun codePointCount(
    seq: CharSequence,
    beginIndex: Int,
    endIndex: Int
): Int

Returns the number of Unicode code points in the text range of the specified char sequence. The text range begins at the specified beginIndex and extends to the char at index endIndex - 1. Thus the length (in chars) of the text range is endIndex-beginIndex. Unpaired surrogates within the text range count as one code point each.

codePointOf

static fun codePointOf(name: String): Int

Returns the code point value of the Unicode character specified by the given character name.

If a character is not assigned a name by the UnicodeData file (part of the Unicode Character Database maintained by the Unicode Consortium), its name is defined as the result of the expression:

Character.UnicodeBlock.of(codePoint).toString().replace('_', ' ') + " " + Integer.toHexString(codePoint).toUpperCase(Locale.ROOT);

The name matching is case insensitive, with any leading and trailing whitespace character removed. For the code points in the UnicodeData file, this method recognizes the name which conforms to the name defined in the "Unicode Name Property" section in the Unicode Standard. For other code points, this method recognizes the name generated with [getName(int)](#getName%28kotlin.Int%29) method.

compare

static fun compare(
    x: Char,
    y: Char
): Int

Compares two char values numerically. The value returned is identical to what would be returned by:

Character.valueOf(x).compareTo(Character.valueOf(y))

compareTo

fun compareTo(other: Char): Int

Compares two Character objects numerically.

digit

static fun digit(
    ch: Char,
    radix: Int
): Int

Returns the numeric value of the character ch in the specified radix.

If the radix is not in the range MIN_RADIX ≤ radix ≤ MAX_RADIX or if the value of ch is not a valid digit in the specified radix, -1 is returned. A character is a valid digit if at least one of the following is true:

• The method isDigit is true of the character and the Unicode decimal digit value of the character (or its single-character decomposition) is less than the specified radix. In this case the decimal digit value is returned.
• The character is one of the uppercase Latin letters 'A' through 'Z' and its code is less than radix + 'A' - 10. In this case, ch - 'A' + 10 is returned.
• The character is one of the lowercase Latin letters 'a' through 'z' and its code is less than radix + 'a' - 10. In this case, ch - 'a' + 10 is returned.
• The character is one of the fullwidth uppercase Latin letters A ('\u005CuFF21') through Z ('\u005CuFF3A') and its code is less than radix + '\u005CuFF21' - 10. In this case, ch - '\u005CuFF21' + 10 is returned.
• The character is one of the fullwidth lowercase Latin letters a ('\u005CuFF41') through z ('\u005CuFF5A') and its code is less than radix + '\u005CuFF41' - 10. In this case, ch - '\u005CuFF41' + 10 is returned.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [digit(int,int)](#digit%28kotlin.Int,%20kotlin.Int%29) method.

digit

static fun digit(
    codePoint: Int,
    radix: Int
): Int

Returns the numeric value of the specified character (Unicode code point) in the specified radix.

If the radix is not in the range MIN_RADIX ≤ radix ≤ MAX_RADIX or if the character is not a valid digit in the specified radix, -1 is returned. A character is a valid digit if at least one of the following is true:

• The method [isDigit(codePoint)](#isDigit%28kotlin.Int%29) is true of the character and the Unicode decimal digit value of the character (or its single-character decomposition) is less than the specified radix. In this case the decimal digit value is returned.
• The character is one of the uppercase Latin letters 'A' through 'Z' and its code is less than radix + 'A' - 10. In this case, codePoint - 'A' + 10 is returned.
• The character is one of the lowercase Latin letters 'a' through 'z' and its code is less than radix + 'a' - 10. In this case, codePoint - 'a' + 10 is returned.
• The character is one of the fullwidth uppercase Latin letters A ('\u005CuFF21') through Z ('\u005CuFF3A') and its code is less than radix + '\u005CuFF21' - 10. In this case, codePoint - '\u005CuFF21' + 10 is returned.
• The character is one of the fullwidth lowercase Latin letters a ('\u005CuFF41') through z ('\u005CuFF5A') and its code is less than radix + '\u005CuFF41'- 10. In this case, codePoint - '\u005CuFF41' + 10 is returned.

equals

fun equals(other: Any?): Boolean

Compares this object against the specified object. The result is true if and only if the argument is not null and is a Character object that represents the same char value as this object.

forDigit

static fun forDigit(
    digit: Int,
    radix: Int
): Char

Determines the character representation for a specific digit in the specified radix. If the value of radix is not a valid radix, or the value of digit is not a valid digit in the specified radix, the null character ('\u005Cu0000') is returned.

The radix argument is valid if it is greater than or equal to MIN_RADIX and less than or equal to MAX_RADIX. The digit argument is valid if 0 <= digit < radix.

If the digit is less than 10, then '0' + digit is returned. Otherwise, the value 'a' + digit - 10 is returned.

See Also

• [java.lang.Character#MIN_RADIX](#MIN%5FRADIX:kotlin.Int)
• [java.lang.Character#MAX_RADIX](#MAX%5FRADIX:kotlin.Int)
• [java.lang.Character#digit(char, int)](#digit%28kotlin.Char,%20kotlin.Int%29)

getName

static fun getName(codePoint: Int): String?

Returns the name of the specified character , or null if the code point is [unassigned](#UNASSIGNED:kotlin.Byte).

If the specified character is not assigned a name by the UnicodeData file (part of the Unicode Character Database maintained by the Unicode Consortium), the returned name is the same as the result of the expression:

Character.UnicodeBlock.of(codePoint).toString().replace('_', ' ') + " " + Integer.toHexString(codePoint).toUpperCase(Locale.ROOT); For the codePoints in the UnicodeData file, the name returned by this method follows the naming scheme in the "Unicode Name Property" section of the Unicode Standard. For other code points, such as Hangul/Ideographs, The name generation rule above differs from the one defined in the Unicode Standard.

getNumericValue

static fun getNumericValue(ch: Char): Int

Returns the int value that the specified Unicode character represents. For example, the character '\u005Cu216C' (the roman numeral fifty) will return an int with a value of 50.

The letters A-Z in their uppercase ('\u005Cu0041' through '\u005Cu005A'), lowercase ('\u005Cu0061' through '\u005Cu007A'), and full width variant ('\u005CuFF21' through '\u005CuFF3A' and '\u005CuFF41' through '\u005CuFF5A') forms have numeric values from 10 through 35. This is independent of the Unicode specification, which does not assign numeric values to these char values.

If the character does not have a numeric value, then -1 is returned. If the character has a numeric value that cannot be represented as a nonnegative integer (for example, a fractional value), then -2 is returned.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [getNumericValue(int)](#getNumericValue%28kotlin.Int%29) method.

getNumericValue

static fun getNumericValue(codePoint: Int): Int

Returns the int value that the specified character (Unicode code point) represents. For example, the character '\u005Cu216C' (the Roman numeral fifty) will return an int with a value of 50.

The letters A-Z in their uppercase ('\u005Cu0041' through '\u005Cu005A'), lowercase ('\u005Cu0061' through '\u005Cu007A'), and full width variant ('\u005CuFF21' through '\u005CuFF3A' and '\u005CuFF41' through '\u005CuFF5A') forms have numeric values from 10 through 35. This is independent of the Unicode specification, which does not assign numeric values to these char values.

If the character does not have a numeric value, then -1 is returned. If the character has a numeric value that cannot be represented as a nonnegative integer (for example, a fractional value), then -2 is returned.

hashCode

fun hashCode(): Int

Returns a hash code for this Character; equal to the result of invoking charValue().

hashCode

static fun hashCode(value: Char): Int

Returns a hash code for a char value; compatible with Character.hashCode().

highSurrogate

static fun highSurrogate(codePoint: Int): Char

Returns the leading surrogate (a high surrogate code unit) of the surrogate pair representing the specified supplementary character (Unicode code point) in the UTF-16 encoding. If the specified character is not a supplementary character, an unspecified char is returned.

If [isSupplementaryCodePoint(x)](#isSupplementaryCodePoint%28kotlin.Int%29) is true, then [isHighSurrogate](#isHighSurrogate%28kotlin.Char%29) (highSurrogate(x)) and [toCodePoint](#toCodePoint%28kotlin.Char,%20kotlin.Char%29) (highSurrogate(x), [lowSurrogate](#lowSurrogate%28kotlin.Int%29) (x)) == x are also always true.

isAlphabetic

static fun isAlphabetic(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is alphabetic.

A character is considered to be alphabetic if its general category type, provided by [getType(codePoint)](#getType%28kotlin.Int%29), is any of the following:

• UPPERCASE_LETTER
• LOWERCASE_LETTER
• TITLECASE_LETTER
• MODIFIER_LETTER
• OTHER_LETTER
• LETTER_NUMBER

or it has contributory property Other_Alphabetic as defined by the Unicode Standard.

isBmpCodePoint

static fun isBmpCodePoint(codePoint: Int): Boolean

Determines whether the specified character (Unicode code point) is in the Basic Multilingual Plane (BMP). Such code points can be represented using a single char.

isDefined

static fun isDefined(ch: Char): Boolean

Determines if a character is defined in Unicode.

A character is defined if at least one of the following is true:

• It has an entry in the UnicodeData file.
• It has a value in a range defined by the UnicodeData file.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isDefined(int)](#isDefined%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isDigit(char)](#isDigit%28kotlin.Char%29)
• [java.lang.Character#isLetter(char)](#isLetter%28kotlin.Char%29)
• [java.lang.Character#isLetterOrDigit(char)](#isLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isLowerCase(char)](#isLowerCase%28kotlin.Char%29)
• [java.lang.Character#isTitleCase(char)](#isTitleCase%28kotlin.Char%29)
• [java.lang.Character#isUpperCase(char)](#isUpperCase%28kotlin.Char%29)

isDefined

static fun isDefined(codePoint: Int): Boolean

Determines if a character (Unicode code point) is defined in Unicode.

A character is defined if at least one of the following is true:

• It has an entry in the UnicodeData file.
• It has a value in a range defined by the UnicodeData file.

See Also

• [java.lang.Character#isDigit(int)](#isDigit%28kotlin.Int%29)
• [java.lang.Character#isLetter(int)](#isLetter%28kotlin.Int%29)
• [java.lang.Character#isLetterOrDigit(int)](#isLetterOrDigit%28kotlin.Int%29)
• [java.lang.Character#isLowerCase(int)](#isLowerCase%28kotlin.Int%29)
• [java.lang.Character#isTitleCase(int)](#isTitleCase%28kotlin.Int%29)
• [java.lang.Character#isUpperCase(int)](#isUpperCase%28kotlin.Int%29)

isDigit

static fun isDigit(ch: Char): Boolean

Determines if the specified character is a digit.

A character is a digit if its general category type, provided by Character.getType(ch), is DECIMAL_DIGIT_NUMBER.

Some Unicode character ranges that contain digits:

• '\u005Cu0030' through '\u005Cu0039', ISO-LATIN-1 digits ('0' through '9')
• '\u005Cu0660' through '\u005Cu0669', Arabic-Indic digits
• '\u005Cu06F0' through '\u005Cu06F9', Extended Arabic-Indic digits
• '\u005Cu0966' through '\u005Cu096F', Devanagari digits
• '\u005CuFF10' through '\u005CuFF19', Fullwidth digits

Many other character ranges contain digits as well.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isDigit(int)](#isDigit%28kotlin.Int%29) method.

See Also

• [java.lang.Character#digit(char, int)](#digit%28kotlin.Char,%20kotlin.Int%29)
• [java.lang.Character#forDigit(int, int)](#forDigit%28kotlin.Int,%20kotlin.Int%29)
• [java.lang.Character#getType(char)](#getType%28kotlin.Char%29)

isDigit

static fun isDigit(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a digit.

A character is a digit if its general category type, provided by [getType(codePoint)](#getType%28kotlin.Int%29), is DECIMAL_DIGIT_NUMBER.

Some Unicode character ranges that contain digits:

• '\u005Cu0030' through '\u005Cu0039', ISO-LATIN-1 digits ('0' through '9')
• '\u005Cu0660' through '\u005Cu0669', Arabic-Indic digits
• '\u005Cu06F0' through '\u005Cu06F9', Extended Arabic-Indic digits
• '\u005Cu0966' through '\u005Cu096F', Devanagari digits
• '\u005CuFF10' through '\u005CuFF19', Fullwidth digits

Many other character ranges contain digits as well.

isEmoji

static fun isEmoji(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is an Emoji.

A character is considered to be an Emoji if and only if it has the Emoji property, defined in Unicode Emoji (Technical Standard #51).

isEmojiComponent

static fun isEmojiComponent(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is an Emoji Component.

A character is considered to be an Emoji Component if and only if it has the Emoji_Component property, defined in Unicode Emoji (Technical Standard #51).

isEmojiModifier

static fun isEmojiModifier(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is an Emoji Modifier.

A character is considered to be an Emoji Modifier if and only if it has the Emoji_Modifier property, defined in Unicode Emoji (Technical Standard #51).

isEmojiModifierBase

static fun isEmojiModifierBase(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is an Emoji Modifier Base.

A character is considered to be an Emoji Modifier Base if and only if it has the Emoji_Modifier_Base property, defined in Unicode Emoji (Technical Standard #51).

isEmojiPresentation

static fun isEmojiPresentation(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) has the Emoji Presentation property by default.

A character is considered to have the Emoji Presentation property if and only if it has the Emoji_Presentation property, defined in Unicode Emoji (Technical Standard #51).

isExtendedPictographic

static fun isExtendedPictographic(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is an Extended Pictographic.

A character is considered to be an Extended Pictographic if and only if it has the Extended_Pictographic property, defined in Unicode Emoji (Technical Standard #51).

isHighSurrogate

static fun isHighSurrogate(ch: Char): Boolean

Determines if the given char value is a Unicode high-surrogate code unit (also known as leading-surrogate code unit).

Such values do not represent characters by themselves, but are used in the representation of supplementary characters in the UTF-16 encoding.

isISOControl

static fun isISOControl(ch: Char): Boolean

Determines if the specified character is an ISO control character. A character is considered to be an ISO control character if its code is in the range '\u005Cu0000' through '\u005Cu001F' or in the range '\u005Cu007F' through '\u005Cu009F'.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isISOControl(int)](#isISOControl%28kotlin.Int%29) method.

isISOControl

static fun isISOControl(codePoint: Int): Boolean

Determines if the referenced character (Unicode code point) is an ISO control character. A character is considered to be an ISO control character if its code is in the range '\u005Cu0000' through '\u005Cu001F' or in the range '\u005Cu007F' through '\u005Cu009F'.

isIdentifierIgnorable

static fun isIdentifierIgnorable(ch: Char): Boolean

Determines if the specified character should be regarded as an ignorable character in a Java identifier or a Unicode identifier.

The following Unicode characters are ignorable in a Java identifier or a Unicode identifier:

• ISO control characters that are not whitespace
  • '\u005Cu0000' through '\u005Cu0008'
  • '\u005Cu000E' through '\u005Cu001B'
  • '\u005Cu007F' through '\u005Cu009F'
• all characters that have the FORMAT general category value

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isIdentifierIgnorable(int)](#isIdentifierIgnorable%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isJavaIdentifierPart(char)](#isJavaIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierPart(char)](#isUnicodeIdentifierPart%28kotlin.Char%29)

isIdentifierIgnorable

static fun isIdentifierIgnorable(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) should be regarded as an ignorable character in a Java identifier or a Unicode identifier.

The following Unicode characters are ignorable in a Java identifier or a Unicode identifier:

• ISO control characters that are not whitespace
  • '\u005Cu0000' through '\u005Cu0008'
  • '\u005Cu000E' through '\u005Cu001B'
  • '\u005Cu007F' through '\u005Cu009F'
• all characters that have the FORMAT general category value

See Also

• [java.lang.Character#isJavaIdentifierPart(int)](#isJavaIdentifierPart%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierPart(int)](#isUnicodeIdentifierPart%28kotlin.Int%29)

isIdeographic

static fun isIdeographic(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a CJKV (Chinese, Japanese, Korean and Vietnamese) ideograph, as defined by the Unicode Standard.

isJavaIdentifierPart

static fun isJavaIdentifierPart(ch: Char): Boolean

Determines if the specified character may be part of a Java identifier as other than the first character.

A character may be part of a Java identifier if any of the following conditions are true:

• it is a letter
• it is a currency symbol (such as '$')
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for the character

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isJavaIdentifierPart(int)](#isJavaIdentifierPart%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isIdentifierIgnorable(char)](#isIdentifierIgnorable%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierStart(char)](#isJavaIdentifierStart%28kotlin.Char%29)
• [java.lang.Character#isLetterOrDigit(char)](#isLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierPart(char)](#isUnicodeIdentifierPart%28kotlin.Char%29)

isJavaIdentifierPart

static fun isJavaIdentifierPart(codePoint: Int): Boolean

Determines if the character (Unicode code point) may be part of a Java identifier as other than the first character.

A character may be part of a Java identifier if any of the following conditions are true:

• it is a letter
• it is a currency symbol (such as '$')
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• [ isIdentifierIgnorable(codePoint)](#isIdentifierIgnorable%28kotlin.Int%29) returns true for the code point

See Also

• [java.lang.Character#isIdentifierIgnorable(int)](#isIdentifierIgnorable%28kotlin.Int%29)
• [java.lang.Character#isJavaIdentifierStart(int)](#isJavaIdentifierStart%28kotlin.Int%29)
• [java.lang.Character#isLetterOrDigit(int)](#isLetterOrDigit%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierPart(int)](#isUnicodeIdentifierPart%28kotlin.Int%29)

isJavaIdentifierStart

static fun isJavaIdentifierStart(ch: Char): Boolean

Determines if the specified character is permissible as the first character in a Java identifier.

A character may start a Java identifier if and only if one of the following conditions is true:

• [isLetter(ch)](#isLetter%28kotlin.Char%29) returns true
• [getType(ch)](#getType%28kotlin.Char%29) returns LETTER_NUMBER
• ch is a currency symbol (such as '$')
• ch is a connecting punctuation character (such as '_').

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isJavaIdentifierStart(int)](#isJavaIdentifierStart%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isJavaIdentifierPart(char)](#isJavaIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isLetter(char)](#isLetter%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierStart(char)](#isUnicodeIdentifierStart%28kotlin.Char%29)

isJavaIdentifierStart

static fun isJavaIdentifierStart(codePoint: Int): Boolean

Determines if the character (Unicode code point) is permissible as the first character in a Java identifier.

A character may start a Java identifier if and only if one of the following conditions is true:

• [isLetter(codePoint)](#isLetter%28kotlin.Int%29) returns true
• [getType(codePoint)](#getType%28kotlin.Int%29) returns LETTER_NUMBER
• the referenced character is a currency symbol (such as '$')
• the referenced character is a connecting punctuation character (such as '_').

See Also

• [java.lang.Character#isJavaIdentifierPart(int)](#isJavaIdentifierPart%28kotlin.Int%29)
• [java.lang.Character#isLetter(int)](#isLetter%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierStart(int)](#isUnicodeIdentifierStart%28kotlin.Int%29)

isJavaLetter

static fun isJavaLetter(ch: Char): Boolean

Deprecated: Replaced by isJavaIdentifierStart(char).

Determines if the specified character is permissible as the first character in a Java identifier.

A character may start a Java identifier if and only if one of the following conditions is true:

• [isLetter(ch)](#isLetter%28kotlin.Char%29) returns true
• [getType(ch)](#getType%28kotlin.Char%29) returns LETTER_NUMBER
• ch is a currency symbol (such as '$')
• ch is a connecting punctuation character (such as '_').

See Also

• [java.lang.Character#isJavaLetterOrDigit(char)](#isJavaLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierStart(char)](#isJavaIdentifierStart%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierPart(char)](#isJavaIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isLetter(char)](#isLetter%28kotlin.Char%29)
• [java.lang.Character#isLetterOrDigit(char)](#isLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierStart(char)](#isUnicodeIdentifierStart%28kotlin.Char%29)

isJavaLetterOrDigit

static fun isJavaLetterOrDigit(ch: Char): Boolean

Deprecated: Replaced by isJavaIdentifierPart(char).

Determines if the specified character may be part of a Java identifier as other than the first character.

A character may be part of a Java identifier if and only if one of the following conditions is true:

• it is a letter
• it is a currency symbol (such as '$')
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for the character.

See Also

• [java.lang.Character#isJavaLetter(char)](#isJavaLetter%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierStart(char)](#isJavaIdentifierStart%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierPart(char)](#isJavaIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isLetter(char)](#isLetter%28kotlin.Char%29)
• [java.lang.Character#isLetterOrDigit(char)](#isLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierPart(char)](#isUnicodeIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isIdentifierIgnorable(char)](#isIdentifierIgnorable%28kotlin.Char%29)

isLetter

static fun isLetter(ch: Char): Boolean

Determines if the specified character is a letter.

A character is considered to be a letter if its general category type, provided by Character.getType(ch), is any of the following:

• UPPERCASE_LETTER
• LOWERCASE_LETTER
• TITLECASE_LETTER
• MODIFIER_LETTER
• OTHER_LETTER

Not all letters have case. Many characters are letters but are neither uppercase nor lowercase nor titlecase.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isLetter(int)](#isLetter%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isDigit(char)](#isDigit%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierStart(char)](#isJavaIdentifierStart%28kotlin.Char%29)
• [java.lang.Character#isJavaLetter(char)](#isJavaLetter%28kotlin.Char%29)
• [java.lang.Character#isJavaLetterOrDigit(char)](#isJavaLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isLetterOrDigit(char)](#isLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isLowerCase(char)](#isLowerCase%28kotlin.Char%29)
• [java.lang.Character#isTitleCase(char)](#isTitleCase%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierStart(char)](#isUnicodeIdentifierStart%28kotlin.Char%29)
• [java.lang.Character#isUpperCase(char)](#isUpperCase%28kotlin.Char%29)

isLetter

static fun isLetter(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a letter.

A character is considered to be a letter if its general category type, provided by [getType(codePoint)](#getType%28kotlin.Int%29), is any of the following:

• UPPERCASE_LETTER
• LOWERCASE_LETTER
• TITLECASE_LETTER
• MODIFIER_LETTER
• OTHER_LETTER

Not all letters have case. Many characters are letters but are neither uppercase nor lowercase nor titlecase.

See Also

• [java.lang.Character#isDigit(int)](#isDigit%28kotlin.Int%29)
• [java.lang.Character#isJavaIdentifierStart(int)](#isJavaIdentifierStart%28kotlin.Int%29)
• [java.lang.Character#isLetterOrDigit(int)](#isLetterOrDigit%28kotlin.Int%29)
• [java.lang.Character#isLowerCase(int)](#isLowerCase%28kotlin.Int%29)
• [java.lang.Character#isTitleCase(int)](#isTitleCase%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierStart(int)](#isUnicodeIdentifierStart%28kotlin.Int%29)
• [java.lang.Character#isUpperCase(int)](#isUpperCase%28kotlin.Int%29)

isLetterOrDigit

static fun isLetterOrDigit(ch: Char): Boolean

Determines if the specified character is a letter or digit.

A character is considered to be a letter or digit if either Character.isLetter(char ch) or Character.isDigit(char ch) returns true for the character.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isLetterOrDigit(int)](#isLetterOrDigit%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isDigit(char)](#isDigit%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierPart(char)](#isJavaIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isJavaLetter(char)](#isJavaLetter%28kotlin.Char%29)
• [java.lang.Character#isJavaLetterOrDigit(char)](#isJavaLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isLetter(char)](#isLetter%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierPart(char)](#isUnicodeIdentifierPart%28kotlin.Char%29)

isLetterOrDigit

static fun isLetterOrDigit(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a letter or digit.

A character is considered to be a letter or digit if either [isLetter(codePoint)](#isLetter%28kotlin.Int%29) or [isDigit(codePoint)](#isDigit%28kotlin.Int%29) returns true for the character.

See Also

• [java.lang.Character#isDigit(int)](#isDigit%28kotlin.Int%29)
• [java.lang.Character#isJavaIdentifierPart(int)](#isJavaIdentifierPart%28kotlin.Int%29)
• [java.lang.Character#isLetter(int)](#isLetter%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierPart(int)](#isUnicodeIdentifierPart%28kotlin.Int%29)

isLowSurrogate

static fun isLowSurrogate(ch: Char): Boolean

Determines if the given char value is a Unicode low-surrogate code unit (also known as trailing-surrogate code unit).

Such values do not represent characters by themselves, but are used in the representation of supplementary characters in the UTF-16 encoding.

isLowerCase

static fun isLowerCase(ch: Char): Boolean

Determines if the specified character is a lowercase character.

A character is lowercase if its general category type, provided by Character.getType(ch), is LOWERCASE_LETTER, or it has contributory property Other_Lowercase as defined by the Unicode Standard.

The following are examples of lowercase characters:

a b c d e f g h i j k l m n o p q r s t u v w x y z '\u00DF' '\u00E0' '\u00E1' '\u00E2' '\u00E3' '\u00E4' '\u00E5' '\u00E6' '\u00E7' '\u00E8' '\u00E9' '\u00EA' '\u00EB' '\u00EC' '\u00ED' '\u00EE' '\u00EF' '\u00F0' '\u00F1' '\u00F2' '\u00F3' '\u00F4' '\u00F5' '\u00F6' '\u00F8' '\u00F9' '\u00FA' '\u00FB' '\u00FC' '\u00FD' '\u00FE' '\u00FF'

Many other Unicode characters are lowercase too.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isLowerCase(int)](#isLowerCase%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isLowerCase(char)](#isLowerCase%28kotlin.Char%29)
• [java.lang.Character#isTitleCase(char)](#isTitleCase%28kotlin.Char%29)
• [java.lang.Character#toLowerCase(char)](#toLowerCase%28kotlin.Char%29)
• [java.lang.Character#getType(char)](#getType%28kotlin.Char%29)

isLowerCase

static fun isLowerCase(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a lowercase character.

A character is lowercase if its general category type, provided by java.lang.Character#getType, is LOWERCASE_LETTER, or it has contributory property Other_Lowercase as defined by the Unicode Standard.

The following are examples of lowercase characters:

a b c d e f g h i j k l m n o p q r s t u v w x y z '\u00DF' '\u00E0' '\u00E1' '\u00E2' '\u00E3' '\u00E4' '\u00E5' '\u00E6' '\u00E7' '\u00E8' '\u00E9' '\u00EA' '\u00EB' '\u00EC' '\u00ED' '\u00EE' '\u00EF' '\u00F0' '\u00F1' '\u00F2' '\u00F3' '\u00F4' '\u00F5' '\u00F6' '\u00F8' '\u00F9' '\u00FA' '\u00FB' '\u00FC' '\u00FD' '\u00FE' '\u00FF'

Many other Unicode characters are lowercase too.

See Also

• [java.lang.Character#isLowerCase(int)](#isLowerCase%28kotlin.Int%29)
• [java.lang.Character#isTitleCase(int)](#isTitleCase%28kotlin.Int%29)
• [java.lang.Character#toLowerCase(int)](#toLowerCase%28kotlin.Int%29)
• [java.lang.Character#getType(int)](#getType%28kotlin.Int%29)

isMirrored

static fun isMirrored(ch: Char): Boolean

Determines whether the character is mirrored according to the Unicode specification. Mirrored characters should have their glyphs horizontally mirrored when displayed in text that is right-to-left. For example, '\u005Cu0028' LEFT PARENTHESIS is semantically defined to be an opening parenthesis. This will appear as a "(" in text that is left-to-right but as a ")" in text that is right-to-left.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isMirrored(int)](#isMirrored%28kotlin.Int%29) method.

isMirrored

static fun isMirrored(codePoint: Int): Boolean

Determines whether the specified character (Unicode code point) is mirrored according to the Unicode specification. Mirrored characters should have their glyphs horizontally mirrored when displayed in text that is right-to-left. For example, '\u005Cu0028' LEFT PARENTHESIS is semantically defined to be an opening parenthesis. This will appear as a "(" in text that is left-to-right but as a ")" in text that is right-to-left.

isSpace

static fun isSpace(ch: Char): Boolean

Deprecated: Replaced by isWhitespace(char).

Determines if the specified character is ISO-LATIN-1 white space. This method returns true for the following five characters only:

truechars

isSpaceChar

static fun isSpaceChar(ch: Char): Boolean

Determines if the specified character is a Unicode space character. A character is considered to be a space character if and only if it is specified to be a space character by the Unicode Standard. This method returns true if the character's general category type is any of the following:

• SPACE_SEPARATOR
• LINE_SEPARATOR
• PARAGRAPH_SEPARATOR

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isSpaceChar(int)](#isSpaceChar%28kotlin.Int%29) method.

isSpaceChar

static fun isSpaceChar(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a Unicode space character. A character is considered to be a space character if and only if it is specified to be a space character by the Unicode Standard. This method returns true if the character's general category type is any of the following:

• [SPACE_SEPARATOR](#SPACE%5FSEPARATOR:kotlin.Byte)
• [LINE_SEPARATOR](#LINE%5FSEPARATOR:kotlin.Byte)
• [PARAGRAPH_SEPARATOR](#PARAGRAPH%5FSEPARATOR:kotlin.Byte)

isSupplementaryCodePoint

static fun isSupplementaryCodePoint(codePoint: Int): Boolean

Determines whether the specified character (Unicode code point) is in the supplementary character range.

isSurrogate

static fun isSurrogate(ch: Char): Boolean

Determines if the given char value is a Unicode surrogate code unit.

Such values do not represent characters by themselves, but are used in the representation of supplementary characters in the UTF-16 encoding.

A char value is a surrogate code unit if and only if it is either a low-surrogate code unit or a high-surrogate code unit.

isSurrogatePair

static fun isSurrogatePair(
    high: Char,
    low: Char
): Boolean

Determines whether the specified pair of char values is a valid Unicode surrogate pair.

This method is equivalent to the expression:

isHighSurrogate(high) && isLowSurrogate(low)

isTitleCase

static fun isTitleCase(ch: Char): Boolean

Determines if the specified character is a titlecase character.

A character is a titlecase character if its general category type, provided by Character.getType(ch), is TITLECASE_LETTER.

Some characters look like pairs of Latin letters. For example, there is an uppercase letter that looks like "LJ" and has a corresponding lowercase letter that looks like "lj". A third form, which looks like "Lj", is the appropriate form to use when rendering a word in lowercase with initial capitals, as for a book title.

These are some of the Unicode characters for which this method returns true:

• LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
• LATIN CAPITAL LETTER L WITH SMALL LETTER J
• LATIN CAPITAL LETTER N WITH SMALL LETTER J
• LATIN CAPITAL LETTER D WITH SMALL LETTER Z

Many other Unicode characters are titlecase too.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isTitleCase(int)](#isTitleCase%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isLowerCase(char)](#isLowerCase%28kotlin.Char%29)
• [java.lang.Character#isUpperCase(char)](#isUpperCase%28kotlin.Char%29)
• [java.lang.Character#toTitleCase(char)](#toTitleCase%28kotlin.Char%29)
• [java.lang.Character#getType(char)](#getType%28kotlin.Char%29)

isTitleCase

static fun isTitleCase(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is a titlecase character.

A character is a titlecase character if its general category type, provided by [getType(codePoint)](#getType%28kotlin.Int%29), is TITLECASE_LETTER.

Some characters look like pairs of Latin letters. For example, there is an uppercase letter that looks like "LJ" and has a corresponding lowercase letter that looks like "lj". A third form, which looks like "Lj", is the appropriate form to use when rendering a word in lowercase with initial capitals, as for a book title.

These are some of the Unicode characters for which this method returns true:

• LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
• LATIN CAPITAL LETTER L WITH SMALL LETTER J
• LATIN CAPITAL LETTER N WITH SMALL LETTER J
• LATIN CAPITAL LETTER D WITH SMALL LETTER Z

Many other Unicode characters are titlecase too.

See Also

• [java.lang.Character#isLowerCase(int)](#isLowerCase%28kotlin.Int%29)
• [java.lang.Character#isUpperCase(int)](#isUpperCase%28kotlin.Int%29)
• [java.lang.Character#toTitleCase(int)](#toTitleCase%28kotlin.Int%29)
• [java.lang.Character#getType(int)](#getType%28kotlin.Int%29)

isUnicodeIdentifierPart

static fun isUnicodeIdentifierPart(ch: Char): Boolean

Determines if the specified character may be part of a Unicode identifier as other than the first character.

A character may be part of a Unicode identifier if and only if one of the following statements is true:

• it is a letter
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for this character.
• it is an Other_ID_Start character.
• it is an Other_ID_Continue character.

This method conforms to UAX31-R1: Default Identifiers requirement of the Unicode Standard, with the following profile of UAX31:

Continue := Start + ID_Continue + ignorable Medial := empty ignorable := isIdentifierIgnorable(char) returns true for the character

ignorable is added to Continue for backward compatibility.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isUnicodeIdentifierPart(int)](#isUnicodeIdentifierPart%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isIdentifierIgnorable(char)](#isIdentifierIgnorable%28kotlin.Char%29)
• [java.lang.Character#isJavaIdentifierPart(char)](#isJavaIdentifierPart%28kotlin.Char%29)
• [java.lang.Character#isLetterOrDigit(char)](#isLetterOrDigit%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierStart(char)](#isUnicodeIdentifierStart%28kotlin.Char%29)

isUnicodeIdentifierPart

static fun isUnicodeIdentifierPart(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) may be part of a Unicode identifier as other than the first character.

A character may be part of a Unicode identifier if and only if one of the following statements is true:

• it is a letter
• it is a connecting punctuation character (such as '_')
• it is a digit
• it is a numeric letter (such as a Roman numeral character)
• it is a combining mark
• it is a non-spacing mark
• isIdentifierIgnorable returns true for this character.
• it is an Other_ID_Start character.
• it is an Other_ID_Continue character.

This method conforms to UAX31-R1: Default Identifiers requirement of the Unicode Standard, with the following profile of UAX31:

Continue := Start + ID_Continue + ignorable Medial := empty ignorable := isIdentifierIgnorable(int) returns true for the character

ignorable is added to Continue for backward compatibility.

See Also

• [java.lang.Character#isIdentifierIgnorable(int)](#isIdentifierIgnorable%28kotlin.Int%29)
• [java.lang.Character#isJavaIdentifierPart(int)](#isJavaIdentifierPart%28kotlin.Int%29)
• [java.lang.Character#isLetterOrDigit(int)](#isLetterOrDigit%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierStart(int)](#isUnicodeIdentifierStart%28kotlin.Int%29)

isUnicodeIdentifierStart

static fun isUnicodeIdentifierStart(ch: Char): Boolean

Determines if the specified character is permissible as the first character in a Unicode identifier.

A character may start a Unicode identifier if and only if one of the following conditions is true:

• [isLetter(ch)](#isLetter%28kotlin.Char%29) returns true
• [getType(ch)](#getType%28kotlin.Char%29) returns LETTER_NUMBER.
• it is an Other_ID_Start character.

This method conforms to UAX31-R1: Default Identifiers requirement of the Unicode Standard, with the following profile of UAX31:

Start := ID_Start + 'VERTICAL TILDE' (U+2E2F)

'VERTICAL TILDE' is added to Start for backward compatibility.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isUnicodeIdentifierStart(int)](#isUnicodeIdentifierStart%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isJavaIdentifierStart(char)](#isJavaIdentifierStart%28kotlin.Char%29)
• [java.lang.Character#isLetter(char)](#isLetter%28kotlin.Char%29)
• [java.lang.Character#isUnicodeIdentifierPart(char)](#isUnicodeIdentifierPart%28kotlin.Char%29)

isUnicodeIdentifierStart

static fun isUnicodeIdentifierStart(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is permissible as the first character in a Unicode identifier.

A character may start a Unicode identifier if and only if one of the following conditions is true:

• [isLetter(codePoint)](#isLetter%28kotlin.Int%29) returns true
• [getType(codePoint)](#getType%28kotlin.Int%29) returns LETTER_NUMBER.
• it is an Other_ID_Start character.

This method conforms to UAX31-R1: Default Identifiers requirement of the Unicode Standard, with the following profile of UAX31:

Start := ID_Start + 'VERTICAL TILDE' (U+2E2F)

'VERTICAL TILDE' is added to Start for backward compatibility.

See Also

• [java.lang.Character#isJavaIdentifierStart(int)](#isJavaIdentifierStart%28kotlin.Int%29)
• [java.lang.Character#isLetter(int)](#isLetter%28kotlin.Int%29)
• [java.lang.Character#isUnicodeIdentifierPart(int)](#isUnicodeIdentifierPart%28kotlin.Int%29)

isUpperCase

static fun isUpperCase(ch: Char): Boolean

Determines if the specified character is an uppercase character.

A character is uppercase if its general category type, provided by Character.getType(ch), is UPPERCASE_LETTER. or it has contributory property Other_Uppercase as defined by the Unicode Standard.

The following are examples of uppercase characters:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7' '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF' '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8' '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'

Many other Unicode characters are uppercase too.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isUpperCase(int)](#isUpperCase%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isLowerCase(char)](#isLowerCase%28kotlin.Char%29)
• [java.lang.Character#isTitleCase(char)](#isTitleCase%28kotlin.Char%29)
• [java.lang.Character#toUpperCase(char)](#toUpperCase%28kotlin.Char%29)
• [java.lang.Character#getType(char)](#getType%28kotlin.Char%29)

isUpperCase

static fun isUpperCase(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is an uppercase character.

A character is uppercase if its general category type, provided by [getType(codePoint)](#getType%28kotlin.Int%29), is UPPERCASE_LETTER, or it has contributory property Other_Uppercase as defined by the Unicode Standard.

The following are examples of uppercase characters:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7' '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF' '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8' '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'

Many other Unicode characters are uppercase too.

See Also

• [java.lang.Character#isLowerCase(int)](#isLowerCase%28kotlin.Int%29)
• [java.lang.Character#isTitleCase(int)](#isTitleCase%28kotlin.Int%29)
• [java.lang.Character#toUpperCase(int)](#toUpperCase%28kotlin.Int%29)
• [java.lang.Character#getType(int)](#getType%28kotlin.Int%29)

isValidCodePoint

static fun isValidCodePoint(codePoint: Int): Boolean

Determines whether the specified code point is a valid Unicode code point value.

isWhitespace

static fun isWhitespace(ch: Char): Boolean

Determines if the specified character is white space according to Java. A character is a Java whitespace character if and only if it satisfies one of the following criteria:

• It is a Unicode space character (SPACE_SEPARATOR, LINE_SEPARATOR, or PARAGRAPH_SEPARATOR) but is not also a non-breaking space ('\u005Cu00A0', '\u005Cu2007', '\u005Cu202F').
• It is '\u005Ct', U+0009 HORIZONTAL TABULATION.
• It is '\u005Cn', U+000A LINE FEED.
• It is '\u005Cu000B', U+000B VERTICAL TABULATION.
• It is '\u005Cf', U+000C FORM FEED.
• It is '\u005Cr', U+000D CARRIAGE RETURN.
• It is '\u005Cu001C', U+001C FILE SEPARATOR.
• It is '\u005Cu001D', U+001D GROUP SEPARATOR.
• It is '\u005Cu001E', U+001E RECORD SEPARATOR.
• It is '\u005Cu001F', U+001F UNIT SEPARATOR.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [isWhitespace(int)](#isWhitespace%28kotlin.Int%29) method.

isWhitespace

static fun isWhitespace(codePoint: Int): Boolean

Determines if the specified character (Unicode code point) is white space according to Java. A character is a Java whitespace character if and only if it satisfies one of the following criteria:

• It is a Unicode space character ([SPACE_SEPARATOR](#SPACE%5FSEPARATOR:kotlin.Byte), [LINE_SEPARATOR](#LINE%5FSEPARATOR:kotlin.Byte), or [PARAGRAPH_SEPARATOR](#PARAGRAPH%5FSEPARATOR:kotlin.Byte)) but is not also a non-breaking space ('\u005Cu00A0', '\u005Cu2007', '\u005Cu202F').
• It is '\u005Ct', U+0009 HORIZONTAL TABULATION.
• It is '\u005Cn', U+000A LINE FEED.
• It is '\u005Cu000B', U+000B VERTICAL TABULATION.
• It is '\u005Cf', U+000C FORM FEED.
• It is '\u005Cr', U+000D CARRIAGE RETURN.
• It is '\u005Cu001C', U+001C FILE SEPARATOR.
• It is '\u005Cu001D', U+001D GROUP SEPARATOR.
• It is '\u005Cu001E', U+001E RECORD SEPARATOR.
• It is '\u005Cu001F', U+001F UNIT SEPARATOR.

lowSurrogate

static fun lowSurrogate(codePoint: Int): Char

Returns the trailing surrogate (a low surrogate code unit) of the surrogate pair representing the specified supplementary character (Unicode code point) in the UTF-16 encoding. If the specified character is not a supplementary character, an unspecified char is returned.

If [isSupplementaryCodePoint(x)](#isSupplementaryCodePoint%28kotlin.Int%29) is true, then [isLowSurrogate](#isLowSurrogate%28kotlin.Char%29) (lowSurrogate(x)) and [toCodePoint](#toCodePoint%28kotlin.Char,%20kotlin.Char%29) ( [highSurrogate](#highSurrogate%28kotlin.Int%29) (x), lowSurrogate(x)) == x are also always true.

offsetByCodePoints

static fun offsetByCodePoints(
    a: CharArray!,
    start: Int,
    count: Int,
    index: Int,
    codePointOffset: Int
): Int

Returns the index within the given char subarray that is offset from the given index by codePointOffset code points. The start and count arguments specify a subarray of the char array. Unpaired surrogates within the text range given by index and codePointOffset count as one code point each.

offsetByCodePoints

static fun offsetByCodePoints(
    seq: CharSequence,
    index: Int,
    codePointOffset: Int
): Int

Returns the index within the given char sequence that is offset from the given index by codePointOffset code points. Unpaired surrogates within the text range given by index and codePointOffset count as one code point each.

reverseBytes

static fun reverseBytes(ch: Char): Char

Returns the value obtained by reversing the order of the bytes in the specified char value.

toChars

static fun toChars(codePoint: Int): CharArray!

Converts the specified character (Unicode code point) to its UTF-16 representation stored in a char array. If the specified code point is a BMP (Basic Multilingual Plane or Plane 0) value, the resulting char array has the same value as codePoint. If the specified code point is a supplementary code point, the resulting char array has the corresponding surrogate pair.

toChars

static fun toChars(
    codePoint: Int,
    dst: CharArray!,
    dstIndex: Int
): Int

Converts the specified character (Unicode code point) to its UTF-16 representation. If the specified code point is a BMP (Basic Multilingual Plane or Plane 0) value, the same value is stored in dst[dstIndex], and 1 is returned. If the specified code point is a supplementary character, its surrogate values are stored in dst[dstIndex] (high-surrogate) and dst[dstIndex+1] (low-surrogate), and 2 is returned.

toCodePoint

static fun toCodePoint(
    high: Char,
    low: Char
): Int

Converts the specified surrogate pair to its supplementary code point value. This method does not validate the specified surrogate pair. The caller must validate it using [isSurrogatePair](#isSurrogatePair%28kotlin.Char,%20kotlin.Char%29) if necessary.

toLowerCase

static fun toLowerCase(ch: Char): Char

Converts the character argument to lowercase using case mapping information from the UnicodeData file.

Note that Character.isLowerCase(Character.toLowerCase(ch)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, [String.toLowerCase()](/reference/kotlin/java/lang/String#toLowerCase%28%29) should be used to map characters to lowercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [toLowerCase(int)](#toLowerCase%28kotlin.Int%29) method.

toLowerCase

static fun toLowerCase(codePoint: Int): Int

Converts the character (Unicode code point) argument to lowercase using case mapping information from the UnicodeData file.

Note that Character.isLowerCase(Character.toLowerCase(codePoint)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, [String.toLowerCase()](/reference/kotlin/java/lang/String#toLowerCase%28%29) should be used to map characters to lowercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.

toString

fun toString(): String

Returns a String object representing this Character's value. The result is a string of length 1 whose sole component is the primitive char value represented by this Character object.

toString

static fun toString(c: Char): String

Returns a String object representing the specified char. The result is a string of length 1 consisting solely of the specified char.

toString

static fun toString(codePoint: Int): String

Returns a String object representing the specified character (Unicode code point). The result is a string of length 1 or 2, consisting solely of the specified codePoint.

toTitleCase

static fun toTitleCase(ch: Char): Char

Converts the character argument to titlecase using case mapping information from the UnicodeData file. If a character has no explicit titlecase mapping and is not itself a titlecase char according to UnicodeData, then the uppercase mapping is returned as an equivalent titlecase mapping. If the char argument is already a titlecase char, the same char value will be returned.

Note that Character.isTitleCase(Character.toTitleCase(ch)) does not always return true for some ranges of characters.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [toTitleCase(int)](#toTitleCase%28kotlin.Int%29) method.

See Also

• [java.lang.Character#isTitleCase(char)](#isTitleCase%28kotlin.Char%29)
• [java.lang.Character#toLowerCase(char)](#toLowerCase%28kotlin.Char%29)
• [java.lang.Character#toUpperCase(char)](#toUpperCase%28kotlin.Char%29)

toTitleCase

static fun toTitleCase(codePoint: Int): Int

Converts the character (Unicode code point) argument to titlecase using case mapping information from the UnicodeData file. If a character has no explicit titlecase mapping and is not itself a titlecase char according to UnicodeData, then the uppercase mapping is returned as an equivalent titlecase mapping. If the character argument is already a titlecase character, the same character value will be returned.

Note that Character.isTitleCase(Character.toTitleCase(codePoint)) does not always return true for some ranges of characters.

See Also

• [java.lang.Character#isTitleCase(int)](#isTitleCase%28kotlin.Int%29)
• [java.lang.Character#toLowerCase(int)](#toLowerCase%28kotlin.Int%29)
• [java.lang.Character#toUpperCase(int)](#toUpperCase%28kotlin.Int%29)

toUpperCase

static fun toUpperCase(ch: Char): Char

Converts the character argument to uppercase using case mapping information from the UnicodeData file.

Note that Character.isUpperCase(Character.toUpperCase(ch)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, [String.toUpperCase()](/reference/kotlin/java/lang/String#toUpperCase%28%29) should be used to map characters to uppercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the [toUpperCase(int)](#toUpperCase%28kotlin.Int%29) method.

toUpperCase

static fun toUpperCase(codePoint: Int): Int

Converts the character (Unicode code point) argument to uppercase using case mapping information from the UnicodeData file.

Note that Character.isUpperCase(Character.toUpperCase(codePoint)) does not always return true for some ranges of characters, particularly those that are symbols or ideographs.

In general, [String.toUpperCase()](/reference/kotlin/java/lang/String#toUpperCase%28%29) should be used to map characters to uppercase. String case mapping methods have several benefits over Character case mapping methods. String case mapping methods can perform locale-sensitive mappings, context-sensitive mappings, and 1:M character mappings, whereas the Character case mapping methods cannot.

valueOf

static fun valueOf(c: Char): Char

Returns a Character instance representing the specified char value. If a new Character instance is not required, this method should generally be used in preference to the constructor [Character(char)](#Character%28kotlin.Char%29), as this method is likely to yield significantly better space and time performance by caching frequently requested values. This method will always cache values in the range '\u005Cu0000' to '\u005Cu007F', inclusive, and may cache other values outside of this range.

Properties

TYPE

static val TYPE: Class<Char!>!

The Class instance representing the primitive type char.