Java 8 | BigInteger shortValueExact() Method with Examples
Last Updated : 04 Dec, 2018
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); } } } Output: BigInteger value : 40000 Exception: java.lang.ArithmeticException: BigInteger out of short range
Reference: https://docs.oracle.com/javase/8/docs/api/java/math/BigInteger.html#shortValueExact--
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