Java 8 | BigInteger shortValueExact() Method with Examples (original) (raw)

java.math.BigInteger.shortValueExact() was introduced in Java 8. It is an inbuilt function which converts the value of BigInteger to a short and checks for lost information. If the value of BigInteger is greater than 32,767 or less than -32,768; the method will throw ArithmeticException as BigInteger doesn’t fit in short range.Syntax:

public short shortValueExact()

Return Value: This method returns the short value of this BigInteger.Exception: The method throws ArithmeticException if the value of BigInteger is greater than 32,767 or less than -32,768; as this range doesn’t fit in short range.Example:

Input: 15,564 Output: 15,564 Explanation: 15,564 is given as input which is BigInteger and short value of 15,564 is 15,564

Input: -17,584 Output: -17,584 Explanation: -17,584 is given as input which is BigInteger and short value of -17,584 is -17,584

Input: 40000 Output: ArithmeticException Explanation: When 40000 is tried to convert to short, since 40000 > 32,767 (greater than a short's range), therefore it throws an arithmetic exception.

Below programs illustrates shortValueExact() method of BigInteger class:Program 1: To demonstrate shortValueExact() method for positive number <32,767

Java `

// Java program to demonstrate shortValueExact() // method of BigInteger Class

import java.math.*;

public class GFG {

public static void main(String[] args)
{
    // Creating a BigInteger object
    BigInteger big;
    big = new BigInteger("15564");

    // print value of BigInteger
    System.out.println("BigInteger value : "
                       + big);

    // convert big to the short value
    short b1 = big.shortValueExact();

    // print short value
    System.out.println("short converted value : "
                       + b1);
}

}

`

Output:

BigInteger value : 15564 short converted value : 15564

Program 2: To demonstrate shortValueExact() method for negative number >-32,768

Java `

// Java program to demonstrate shortValueExact() // method of BigInteger Class

import java.math.*;

public class GFG {

public static void main(String[] args)
{

    // Creating a BigInteger object
    BigInteger big = new BigInteger("-17584");

    // print value of BigInteger
    System.out.println("BigInteger value : "
                       + big);

    // convert big to the short value
    short b1 = big.shortValueExact();

    // print short value
    System.out.println("short converted value : "
                       + b1);
}

}

`

Output:

BigInteger value : -17584 short converted value : -17584

Program 3: To demonstrate shortValueExact() method for negative number <-32,768. It will throw Arithmetic Exception

Java `

// Java program to demonstrate shortValueExact() // method of BigInteger Class

import java.math.*;

public class GFG {

public static void main(String[] args)
{

    // Creating a BigInteger object
    BigInteger big = new BigInteger("-40000");

    // print value of BigInteger
    System.out.println("BigInteger value : "
                       + big);

    try {
        // convert big to the short value
        short b1 = big.shortValueExact();

        // print short value
        System.out.println("short converted value : "
                           + b1);
    }
    catch (Exception e) {
        System.out.println("Exception: " + e);
    }
}

}

`

Output:

BigInteger value : -40000 Exception: java.lang.ArithmeticException: BigInteger out of short range

Program 4: To demonstrate shortValueExact() method for positive number >32,767. It will throw Arithmetic Exception

Java `

// Java program to demonstrate shortValueExact() // method of BigInteger Class

import java.math.*;

public class GFG {

public static void main(String[] args)
{

    // Creating a BigInteger object
    BigInteger big = new BigInteger("40000");

    // print value of BigInteger
    System.out.println("BigInteger value : "
                       + big);

    try {
        // convert big to the short value
        short b1 = big.shortValueExact();

        // print short value
        System.out.println("short converted value : "
                           + b1);
    }
    catch (Exception e) {
        System.out.println("Exception: " + e);
    }
}

}

`