TextArea (Java SE 15 & JDK 15) (original) (raw)

All Implemented Interfaces:

[ImageObserver](image/ImageObserver.html "interface in java.awt.image"), [MenuContainer](MenuContainer.html "interface in java.awt"), [Serializable](../../../java.base/java/io/Serializable.html "interface in java.io"), [Accessible](../../javax/accessibility/Accessible.html "interface in javax.accessibility")

public class TextArea extends TextComponent

A TextArea object is a multi-line region that displays text. It can be set to allow editing or to be read-only.

The following image shows the appearance of a text area:

This text area could be created by the following line of code:

new TextArea("Hello", 5, 40);

Since:

1.0

See Also:

Serialized Form

• Nested Class Summary

Nested Classes

• Field Summary

Fields

• Constructor Summary

Constructors

• Method Summary

Methods declared in class java.awt.TextComponent

[addTextListener](TextComponent.html#addTextListener%28java.awt.event.TextListener%29), [enableInputMethods](TextComponent.html#enableInputMethods%28boolean%29), [getBackground](TextComponent.html#getBackground%28%29), [getCaretPosition](TextComponent.html#getCaretPosition%28%29), [getListeners](TextComponent.html#getListeners%28java.lang.Class%29), [getSelectedText](TextComponent.html#getSelectedText%28%29), [getSelectionEnd](TextComponent.html#getSelectionEnd%28%29), [getSelectionStart](TextComponent.html#getSelectionStart%28%29), [getText](TextComponent.html#getText%28%29), [getTextListeners](TextComponent.html#getTextListeners%28%29), [isEditable](TextComponent.html#isEditable%28%29), [processEvent](TextComponent.html#processEvent%28java.awt.AWTEvent%29), [processTextEvent](TextComponent.html#processTextEvent%28java.awt.event.TextEvent%29), [removeNotify](TextComponent.html#removeNotify%28%29), [removeTextListener](TextComponent.html#removeTextListener%28java.awt.event.TextListener%29), [select](TextComponent.html#select%28int,int%29), [selectAll](TextComponent.html#selectAll%28%29), [setBackground](TextComponent.html#setBackground%28java.awt.Color%29), [setCaretPosition](TextComponent.html#setCaretPosition%28int%29), [setEditable](TextComponent.html#setEditable%28boolean%29), [setSelectionEnd](TextComponent.html#setSelectionEnd%28int%29), [setSelectionStart](TextComponent.html#setSelectionStart%28int%29), [setText](TextComponent.html#setText%28java.lang.String%29)

Methods declared in class java.awt.Component

[action](Component.html#action%28java.awt.Event,java.lang.Object%29), [add](Component.html#add%28java.awt.PopupMenu%29), [addComponentListener](Component.html#addComponentListener%28java.awt.event.ComponentListener%29), [addFocusListener](Component.html#addFocusListener%28java.awt.event.FocusListener%29), [addHierarchyBoundsListener](Component.html#addHierarchyBoundsListener%28java.awt.event.HierarchyBoundsListener%29), [addHierarchyListener](Component.html#addHierarchyListener%28java.awt.event.HierarchyListener%29), [addInputMethodListener](Component.html#addInputMethodListener%28java.awt.event.InputMethodListener%29), [addKeyListener](Component.html#addKeyListener%28java.awt.event.KeyListener%29), [addMouseListener](Component.html#addMouseListener%28java.awt.event.MouseListener%29), [addMouseMotionListener](Component.html#addMouseMotionListener%28java.awt.event.MouseMotionListener%29), [addMouseWheelListener](Component.html#addMouseWheelListener%28java.awt.event.MouseWheelListener%29), [addPropertyChangeListener](Component.html#addPropertyChangeListener%28java.beans.PropertyChangeListener%29), [addPropertyChangeListener](Component.html#addPropertyChangeListener%28java.lang.String,java.beans.PropertyChangeListener%29), [applyComponentOrientation](Component.html#applyComponentOrientation%28java.awt.ComponentOrientation%29), [areFocusTraversalKeysSet](Component.html#areFocusTraversalKeysSet%28int%29), [bounds](Component.html#bounds%28%29), [checkImage](Component.html#checkImage%28java.awt.Image,int,int,java.awt.image.ImageObserver%29), [checkImage](Component.html#checkImage%28java.awt.Image,java.awt.image.ImageObserver%29), [coalesceEvents](Component.html#coalesceEvents%28java.awt.AWTEvent,java.awt.AWTEvent%29), [contains](Component.html#contains%28int,int%29), [contains](Component.html#contains%28java.awt.Point%29), [createImage](Component.html#createImage%28int,int%29), [createImage](Component.html#createImage%28java.awt.image.ImageProducer%29), [createVolatileImage](Component.html#createVolatileImage%28int,int%29), [createVolatileImage](Component.html#createVolatileImage%28int,int,java.awt.ImageCapabilities%29), [deliverEvent](Component.html#deliverEvent%28java.awt.Event%29), [disable](Component.html#disable%28%29), [disableEvents](Component.html#disableEvents%28long%29), [dispatchEvent](Component.html#dispatchEvent%28java.awt.AWTEvent%29), [doLayout](Component.html#doLayout%28%29), [enable](Component.html#enable%28%29), [enable](Component.html#enable%28boolean%29), [enableEvents](Component.html#enableEvents%28long%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,boolean,boolean%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,byte,byte%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,char,char%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,double,double%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,float,float%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,int,int%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,long,long%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,short,short%29), [firePropertyChange](Component.html#firePropertyChange%28java.lang.String,java.lang.Object,java.lang.Object%29), [getAlignmentX](Component.html#getAlignmentX%28%29), [getAlignmentY](Component.html#getAlignmentY%28%29), [getBaseline](Component.html#getBaseline%28int,int%29), [getBaselineResizeBehavior](Component.html#getBaselineResizeBehavior%28%29), [getBounds](Component.html#getBounds%28%29), [getBounds](Component.html#getBounds%28java.awt.Rectangle%29), [getColorModel](Component.html#getColorModel%28%29), [getComponentAt](Component.html#getComponentAt%28int,int%29), [getComponentAt](Component.html#getComponentAt%28java.awt.Point%29), [getComponentListeners](Component.html#getComponentListeners%28%29), [getComponentOrientation](Component.html#getComponentOrientation%28%29), [getCursor](Component.html#getCursor%28%29), [getDropTarget](Component.html#getDropTarget%28%29), [getFocusCycleRootAncestor](Component.html#getFocusCycleRootAncestor%28%29), [getFocusListeners](Component.html#getFocusListeners%28%29), [getFocusTraversalKeys](Component.html#getFocusTraversalKeys%28int%29), [getFocusTraversalKeysEnabled](Component.html#getFocusTraversalKeysEnabled%28%29), [getFont](Component.html#getFont%28%29), [getFontMetrics](Component.html#getFontMetrics%28java.awt.Font%29), [getForeground](Component.html#getForeground%28%29), [getGraphics](Component.html#getGraphics%28%29), [getGraphicsConfiguration](Component.html#getGraphicsConfiguration%28%29), [getHeight](Component.html#getHeight%28%29), [getHierarchyBoundsListeners](Component.html#getHierarchyBoundsListeners%28%29), [getHierarchyListeners](Component.html#getHierarchyListeners%28%29), [getIgnoreRepaint](Component.html#getIgnoreRepaint%28%29), [getInputContext](Component.html#getInputContext%28%29), [getInputMethodListeners](Component.html#getInputMethodListeners%28%29), [getInputMethodRequests](Component.html#getInputMethodRequests%28%29), [getKeyListeners](Component.html#getKeyListeners%28%29), [getLocale](Component.html#getLocale%28%29), [getLocation](Component.html#getLocation%28%29), [getLocation](Component.html#getLocation%28java.awt.Point%29), [getLocationOnScreen](Component.html#getLocationOnScreen%28%29), [getMaximumSize](Component.html#getMaximumSize%28%29), [getMouseListeners](Component.html#getMouseListeners%28%29), [getMouseMotionListeners](Component.html#getMouseMotionListeners%28%29), [getMousePosition](Component.html#getMousePosition%28%29), [getMouseWheelListeners](Component.html#getMouseWheelListeners%28%29), [getName](Component.html#getName%28%29), [getParent](Component.html#getParent%28%29), [getPropertyChangeListeners](Component.html#getPropertyChangeListeners%28%29), [getPropertyChangeListeners](Component.html#getPropertyChangeListeners%28java.lang.String%29), [getSize](Component.html#getSize%28%29), [getSize](Component.html#getSize%28java.awt.Dimension%29), [getToolkit](Component.html#getToolkit%28%29), [getTreeLock](Component.html#getTreeLock%28%29), [getWidth](Component.html#getWidth%28%29), [getX](Component.html#getX%28%29), [getY](Component.html#getY%28%29), [gotFocus](Component.html#gotFocus%28java.awt.Event,java.lang.Object%29), [handleEvent](Component.html#handleEvent%28java.awt.Event%29), [hasFocus](Component.html#hasFocus%28%29), [hide](Component.html#hide%28%29), [imageUpdate](Component.html#imageUpdate%28java.awt.Image,int,int,int,int,int%29), [inside](Component.html#inside%28int,int%29), [invalidate](Component.html#invalidate%28%29), [isBackgroundSet](Component.html#isBackgroundSet%28%29), [isCursorSet](Component.html#isCursorSet%28%29), [isDisplayable](Component.html#isDisplayable%28%29), [isDoubleBuffered](Component.html#isDoubleBuffered%28%29), [isEnabled](Component.html#isEnabled%28%29), [isFocusable](Component.html#isFocusable%28%29), [isFocusCycleRoot](Component.html#isFocusCycleRoot%28java.awt.Container%29), [isFocusOwner](Component.html#isFocusOwner%28%29), [isFocusTraversable](Component.html#isFocusTraversable%28%29), [isFontSet](Component.html#isFontSet%28%29), [isForegroundSet](Component.html#isForegroundSet%28%29), [isLightweight](Component.html#isLightweight%28%29), [isMaximumSizeSet](Component.html#isMaximumSizeSet%28%29), [isMinimumSizeSet](Component.html#isMinimumSizeSet%28%29), [isOpaque](Component.html#isOpaque%28%29), [isPreferredSizeSet](Component.html#isPreferredSizeSet%28%29), [isShowing](Component.html#isShowing%28%29), [isValid](Component.html#isValid%28%29), [isVisible](Component.html#isVisible%28%29), [keyDown](Component.html#keyDown%28java.awt.Event,int%29), [keyUp](Component.html#keyUp%28java.awt.Event,int%29), [layout](Component.html#layout%28%29), [list](Component.html#list%28%29), [list](Component.html#list%28java.io.PrintStream%29), [list](Component.html#list%28java.io.PrintStream,int%29), [list](Component.html#list%28java.io.PrintWriter%29), [list](Component.html#list%28java.io.PrintWriter,int%29), [locate](Component.html#locate%28int,int%29), [location](Component.html#location%28%29), [lostFocus](Component.html#lostFocus%28java.awt.Event,java.lang.Object%29), [mouseDown](Component.html#mouseDown%28java.awt.Event,int,int%29), [mouseDrag](Component.html#mouseDrag%28java.awt.Event,int,int%29), [mouseEnter](Component.html#mouseEnter%28java.awt.Event,int,int%29), [mouseExit](Component.html#mouseExit%28java.awt.Event,int,int%29), [mouseMove](Component.html#mouseMove%28java.awt.Event,int,int%29), [mouseUp](Component.html#mouseUp%28java.awt.Event,int,int%29), [move](Component.html#move%28int,int%29), [nextFocus](Component.html#nextFocus%28%29), [paint](Component.html#paint%28java.awt.Graphics%29), [paintAll](Component.html#paintAll%28java.awt.Graphics%29), [postEvent](Component.html#postEvent%28java.awt.Event%29), [prepareImage](Component.html#prepareImage%28java.awt.Image,int,int,java.awt.image.ImageObserver%29), [prepareImage](Component.html#prepareImage%28java.awt.Image,java.awt.image.ImageObserver%29), [print](Component.html#print%28java.awt.Graphics%29), [printAll](Component.html#printAll%28java.awt.Graphics%29), [processComponentEvent](Component.html#processComponentEvent%28java.awt.event.ComponentEvent%29), [processFocusEvent](Component.html#processFocusEvent%28java.awt.event.FocusEvent%29), [processHierarchyBoundsEvent](Component.html#processHierarchyBoundsEvent%28java.awt.event.HierarchyEvent%29), [processHierarchyEvent](Component.html#processHierarchyEvent%28java.awt.event.HierarchyEvent%29), [processInputMethodEvent](Component.html#processInputMethodEvent%28java.awt.event.InputMethodEvent%29), [processKeyEvent](Component.html#processKeyEvent%28java.awt.event.KeyEvent%29), [processMouseEvent](Component.html#processMouseEvent%28java.awt.event.MouseEvent%29), [processMouseMotionEvent](Component.html#processMouseMotionEvent%28java.awt.event.MouseEvent%29), [processMouseWheelEvent](Component.html#processMouseWheelEvent%28java.awt.event.MouseWheelEvent%29), [remove](Component.html#remove%28java.awt.MenuComponent%29), [removeComponentListener](Component.html#removeComponentListener%28java.awt.event.ComponentListener%29), [removeFocusListener](Component.html#removeFocusListener%28java.awt.event.FocusListener%29), [removeHierarchyBoundsListener](Component.html#removeHierarchyBoundsListener%28java.awt.event.HierarchyBoundsListener%29), [removeHierarchyListener](Component.html#removeHierarchyListener%28java.awt.event.HierarchyListener%29), [removeInputMethodListener](Component.html#removeInputMethodListener%28java.awt.event.InputMethodListener%29), [removeKeyListener](Component.html#removeKeyListener%28java.awt.event.KeyListener%29), [removeMouseListener](Component.html#removeMouseListener%28java.awt.event.MouseListener%29), [removeMouseMotionListener](Component.html#removeMouseMotionListener%28java.awt.event.MouseMotionListener%29), [removeMouseWheelListener](Component.html#removeMouseWheelListener%28java.awt.event.MouseWheelListener%29), [removePropertyChangeListener](Component.html#removePropertyChangeListener%28java.beans.PropertyChangeListener%29), [removePropertyChangeListener](Component.html#removePropertyChangeListener%28java.lang.String,java.beans.PropertyChangeListener%29), [repaint](Component.html#repaint%28%29), [repaint](Component.html#repaint%28int,int,int,int%29), [repaint](Component.html#repaint%28long%29), [repaint](Component.html#repaint%28long,int,int,int,int%29), [requestFocus](Component.html#requestFocus%28%29), [requestFocus](Component.html#requestFocus%28boolean%29), [requestFocus](Component.html#requestFocus%28boolean,java.awt.event.FocusEvent.Cause%29), [requestFocus](Component.html#requestFocus%28java.awt.event.FocusEvent.Cause%29), [requestFocusInWindow](Component.html#requestFocusInWindow%28%29), [requestFocusInWindow](Component.html#requestFocusInWindow%28boolean%29), [requestFocusInWindow](Component.html#requestFocusInWindow%28java.awt.event.FocusEvent.Cause%29), [reshape](Component.html#reshape%28int,int,int,int%29), [resize](Component.html#resize%28int,int%29), [resize](Component.html#resize%28java.awt.Dimension%29), [revalidate](Component.html#revalidate%28%29), [setBounds](Component.html#setBounds%28int,int,int,int%29), [setBounds](Component.html#setBounds%28java.awt.Rectangle%29), [setComponentOrientation](Component.html#setComponentOrientation%28java.awt.ComponentOrientation%29), [setCursor](Component.html#setCursor%28java.awt.Cursor%29), [setDropTarget](Component.html#setDropTarget%28java.awt.dnd.DropTarget%29), [setEnabled](Component.html#setEnabled%28boolean%29), [setFocusable](Component.html#setFocusable%28boolean%29), [setFocusTraversalKeys](Component.html#setFocusTraversalKeys%28int,java.util.Set%29), [setFocusTraversalKeysEnabled](Component.html#setFocusTraversalKeysEnabled%28boolean%29), [setFont](Component.html#setFont%28java.awt.Font%29), [setForeground](Component.html#setForeground%28java.awt.Color%29), [setIgnoreRepaint](Component.html#setIgnoreRepaint%28boolean%29), [setLocale](Component.html#setLocale%28java.util.Locale%29), [setLocation](Component.html#setLocation%28int,int%29), [setLocation](Component.html#setLocation%28java.awt.Point%29), [setMaximumSize](Component.html#setMaximumSize%28java.awt.Dimension%29), [setMinimumSize](Component.html#setMinimumSize%28java.awt.Dimension%29), [setMixingCutoutShape](Component.html#setMixingCutoutShape%28java.awt.Shape%29), [setName](Component.html#setName%28java.lang.String%29), [setPreferredSize](Component.html#setPreferredSize%28java.awt.Dimension%29), [setSize](Component.html#setSize%28int,int%29), [setSize](Component.html#setSize%28java.awt.Dimension%29), [setVisible](Component.html#setVisible%28boolean%29), [show](Component.html#show%28%29), [show](Component.html#show%28boolean%29), [size](Component.html#size%28%29), [toString](Component.html#toString%28%29), [transferFocus](Component.html#transferFocus%28%29), [transferFocusBackward](Component.html#transferFocusBackward%28%29), [transferFocusUpCycle](Component.html#transferFocusUpCycle%28%29), [update](Component.html#update%28java.awt.Graphics%29), [validate](Component.html#validate%28%29)

• Field Details

  • SCROLLBARS_BOTH

  public static final int SCROLLBARS_BOTH
  Create and display both vertical and horizontal scrollbars.
  Since:
  1.1
  See Also:
  Constant Field Values

  • SCROLLBARS_VERTICAL_ONLY

  public static final int SCROLLBARS_VERTICAL_ONLY
  Create and display vertical scrollbar only.
  Since:
  1.1
  See Also:
  Constant Field Values

  • SCROLLBARS_HORIZONTAL_ONLY

  public static final int SCROLLBARS_HORIZONTAL_ONLY
  Create and display horizontal scrollbar only.
  Since:
  1.1
  See Also:
  Constant Field Values

  • SCROLLBARS_NONE

  public static final int SCROLLBARS_NONE
  Do not create or display any scrollbars for the text area.
  Since:
  1.1
  See Also:
  Constant Field Values

• Constructor Details

  • TextArea

  Constructs a new text area with the empty string as text. This text area is created with scrollbar visibility equal toSCROLLBARS_BOTH, so both vertical and horizontal scrollbars will be visible for this text area.
  Throws:
  [HeadlessException](HeadlessException.html "class in java.awt") - ifGraphicsEnvironment.isHeadless returns true
  See Also:
  GraphicsEnvironment.isHeadless()

  • TextArea

  Constructs a new text area with the specified text. This text area is created with scrollbar visibility equal toSCROLLBARS_BOTH, so both vertical and horizontal scrollbars will be visible for this text area.
  Parameters:
  text - the text to be displayed; iftext is null, the empty string "" will be displayed
  Throws:
  [HeadlessException](HeadlessException.html "class in java.awt") - ifGraphicsEnvironment.isHeadless returns true
  See Also:
  GraphicsEnvironment.isHeadless()

  • TextArea

  Constructs a new text area with the specified number of rows and columns and the empty string as text. A column is an approximate average character width that is platform-dependent. The text area is created with scrollbar visibility equal to SCROLLBARS_BOTH, so both vertical and horizontal scrollbars will be visible for this text area.
  Parameters:
  rows - the number of rows
  columns - the number of columns
  Throws:
  [HeadlessException](HeadlessException.html "class in java.awt") - ifGraphicsEnvironment.isHeadless returns true
  See Also:
  GraphicsEnvironment.isHeadless()

  • TextArea

  Constructs a new text area with the specified text, and with the specified number of rows and columns. A column is an approximate average character width that is platform-dependent. The text area is created with scrollbar visibility equal to SCROLLBARS_BOTH, so both vertical and horizontal scrollbars will be visible for this text area.
  Parameters:
  text - the text to be displayed; iftext is null, the empty string "" will be displayed
  rows - the number of rows
  columns - the number of columns
  Throws:
  [HeadlessException](HeadlessException.html "class in java.awt") - ifGraphicsEnvironment.isHeadless returns true
  See Also:
  GraphicsEnvironment.isHeadless()

  • TextArea

  public TextArea​(String text, int rows, int columns, int scrollbars) throws HeadlessException
  Constructs a new text area with the specified text, and with the rows, columns, and scroll bar visibility as specified. All TextArea constructors defer to this one.
  The TextArea class defines several constants that can be supplied as values for thescrollbars argument:
  * SCROLLBARS_BOTH,
  * SCROLLBARS_VERTICAL_ONLY,
  * SCROLLBARS_HORIZONTAL_ONLY,
  * SCROLLBARS_NONE.
  Any other value for thescrollbars argument is invalid and will result in this text area being created with scrollbar visibility equal to the default value of SCROLLBARS_BOTH.
  Parameters:
  text - the text to be displayed; iftext is null, the empty string "" will be displayed
  rows - the number of rows; ifrows is less than 0,rows is set to 0
columns - the number of columns; ifcolumns is less than 0,columns is set to 0
scrollbars - a constant that determines what scrollbars are created to view the text area
  Throws:
  [HeadlessException](HeadlessException.html "class in java.awt") - ifGraphicsEnvironment.isHeadless returns true
  Since:
  1.1
  See Also:
  GraphicsEnvironment.isHeadless()

• Method Details

  • addNotify

  public void addNotify()
  Creates the TextArea's peer. The peer allows us to modify the appearance of the TextArea without changing any of its functionality.
  Overrides:
  [addNotify](TextComponent.html#addNotify%28%29) in class [TextComponent](TextComponent.html "class in java.awt")
  See Also:
  TextComponent.removeNotify()

  • insert

  public void insert​(String str, int pos)
  Inserts the specified text at the specified position in this text area.
  Note that passing null or inconsistent parameters is invalid and will result in unspecified behavior.
  Parameters:
  str - the non-null text to insert
  pos - the position at which to insert
  Since:
  1.1
  See Also:
  TextComponent.setText(java.lang.String), replaceRange(java.lang.String, int, int), append(java.lang.String)

  • insertText

  Inserts the specified text at the specified position in this text area.
  Parameters:
  str - the non-null text to insert
  pos - the position at which to insert

  • append

  public void append​(String str)
  Appends the given text to the text area's current text.
  Note that passing null or inconsistent parameters is invalid and will result in unspecified behavior.
  Parameters:
  str - the non-null text to append
  Since:
  1.1
  See Also:
  insert(java.lang.String, int)

  • appendText

  Appends the given text to the text area's current text.
  Parameters:
  str - the text to append

  • replaceRange

  public void replaceRange​(String str, int start, int end)
  Replaces text between the indicated start and end positions with the specified replacement text. The text at the end position will not be replaced. The text at the start position will be replaced (unless the start position is the same as the end position). The text position is zero-based. The inserted substring may be of a different length than the text it replaces.
  Note that passing null or inconsistent parameters is invalid and will result in unspecified behavior.
  Parameters:
  str - the non-null text to use as the replacement
  start - the start position
  end - the end position
  Since:
  1.1
  See Also:
  insert(java.lang.String, int)

  • replaceText

  Replaces a range of characters between the indicated start and end positions with the specified replacement text (the text at the end position will not be replaced).
  Parameters:
  str - the non-null text to use as the replacement
  start - the start position
  end - the end position

  • getRows

  public int getRows()
  Returns the number of rows in the text area.
  Returns:
  the number of rows in the text area
  Since:
  1.0
  See Also:
  setRows(int), getColumns()

  • setRows

  public void setRows​(int rows)
  Sets the number of rows for this text area.
  Parameters:
  rows - the number of rows
  Throws:
  [IllegalArgumentException](../../../java.base/java/lang/IllegalArgumentException.html "class in java.lang") - if the value supplied for rows is less than 0
  Since:
  1.1
  See Also:
  getRows(), setColumns(int)

  • getColumns

  public int getColumns()
  Returns the number of columns in this text area.
  Returns:
  the number of columns in the text area
  See Also:
  setColumns(int), getRows()

  • setColumns

  public void setColumns​(int columns)
  Sets the number of columns for this text area.
  Parameters:
  columns - the number of columns
  Throws:
  [IllegalArgumentException](../../../java.base/java/lang/IllegalArgumentException.html "class in java.lang") - if the value supplied for columns is less than 0
  Since:
  1.1
  See Also:
  getColumns(), setRows(int)

  • getScrollbarVisibility

  public int getScrollbarVisibility()
  Returns an enumerated value that indicates which scroll bars the text area uses.
  The TextArea class defines four integer constants that are used to specify which scroll bars are available.TextArea has one constructor that gives the application discretion over scroll bars.
  Returns:
  an integer that indicates which scroll bars are used
  Since:
  1.1
  See Also:
  SCROLLBARS_BOTH, SCROLLBARS_VERTICAL_ONLY, SCROLLBARS_HORIZONTAL_ONLY, SCROLLBARS_NONE, TextArea(java.lang.String, int, int, int)

  • getPreferredSize

  public Dimension getPreferredSize​(int rows, int columns)
  Determines the preferred size of a text area with the specified number of rows and columns.
  Parameters:
  rows - the number of rows
  columns - the number of columns
  Returns:
  the preferred dimensions required to display the text area with the specified number of rows and columns
  Since:
  1.1
  See Also:
  Component.getPreferredSize()

  • preferredSize

  Determines the preferred size of the text area with the specified number of rows and columns.
  Parameters:
  rows - the number of rows
  columns - the number of columns
  Returns:
  the preferred dimensions needed for the text area

  • getPreferredSize

  Determines the preferred size of this text area.
  Overrides:
  [getPreferredSize](Component.html#getPreferredSize%28%29) in class [Component](Component.html "class in java.awt")
  Returns:
  the preferred dimensions needed for this text area
  Since:
  1.1
  See Also:
  Component.getPreferredSize()

  • preferredSize

  Description copied from class: [Component](Component.html#preferredSize%28%29)
  Returns the component's preferred size.
  Overrides:
  [preferredSize](Component.html#preferredSize%28%29) in class [Component](Component.html "class in java.awt")
  Returns:
  the component's preferred size

  • getMinimumSize

  public Dimension getMinimumSize​(int rows, int columns)
  Determines the minimum size of a text area with the specified number of rows and columns.
  Parameters:
  rows - the number of rows
  columns - the number of columns
  Returns:
  the minimum dimensions required to display the text area with the specified number of rows and columns
  Since:
  1.1
  See Also:
  Component.getMinimumSize()

  • minimumSize

  Determines the minimum size of the text area with the specified number of rows and columns.
  Parameters:
  rows - the number of rows
  columns - the number of columns
  Returns:
  the minimum size for the text area

  • getMinimumSize

  Determines the minimum size of this text area.
  Overrides:
  [getMinimumSize](Component.html#getMinimumSize%28%29) in class [Component](Component.html "class in java.awt")
  Returns:
  the preferred dimensions needed for this text area
  Since:
  1.1
  See Also:
  Component.getPreferredSize()

  • minimumSize

  Description copied from class: [Component](Component.html#minimumSize%28%29)
  Returns the minimum size of this component.
  Overrides:
  [minimumSize](Component.html#minimumSize%28%29) in class [Component](Component.html "class in java.awt")
  Returns:
  the minimum size of this component

  • paramString

  protected String paramString()
  Returns a string representing the state of this TextArea. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not benull.
  Overrides:
  [paramString](TextComponent.html#paramString%28%29) in class [TextComponent](TextComponent.html "class in java.awt")
  Returns:
  the parameter string of this text area

  • getAccessibleContext

  Returns the AccessibleContext associated with this TextArea. For text areas, theAccessibleContext takes the form of anAccessibleAWTTextArea. A new AccessibleAWTTextArea instance is created if necessary.
  Specified by:
  [getAccessibleContext](../../javax/accessibility/Accessible.html#getAccessibleContext%28%29) in interface [Accessible](../../javax/accessibility/Accessible.html "interface in javax.accessibility")
  Overrides:
  [getAccessibleContext](TextComponent.html#getAccessibleContext%28%29) in class [TextComponent](TextComponent.html "class in java.awt")
  Returns:
  an AccessibleAWTTextArea that serves as theAccessibleContext of this TextArea
  Since:
  1.3