Java Math.subtractExact() Method with Examples

by Online Tutorials Library July 22, 2022

Java Math.subtractExact() method

The java.lang.Math.subtractExact() returns the difference of the arguments. It will throw an exception if the result overflows either int or long.

Syntax

  public static int subtractExact(int a, int b)   public static long subtractExact(long a, long b)  

Parameter

Return

If one of the arguments is Integer.MIN_VALUE or Long.MIN_VALUE, it will throw an ArithmeticException.

Example 1

  public class SubtractExactExample1  {      public static void main(String[] args)       {          long a = 732;          long b = 190;          // Input two values, Output subtraction of a and b           System.out.println(Math.subtractExact(a, b));      }  }  

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Output:

Example 2

  public class SubtractExactExample2  {      public static void main(String[] args)       {          int a = 352;          int b = Integer.MIN_VALUE;          // Input int overflow, Output AirthmeticException                  System.out.println(Math.subtractExact(a, b));      }  }  

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Output:

Exception in thread "main" java.lang.ArithmeticException: integer overflow  at java.lang.Math.subtractExact(Math.java:829)  at SubtractExactExample2.main(SubtractExactExample2.java:8)

Example 3

  public class SubtractExactExample3  {      public static void main(String[] args)       {          long a = Long.MIN_VALUE;          long b = 42;          // Input long overflow, Output AirthmeticException          System.out.println(Math.subtractExact(a, b));      }  }  

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Output:

Exception in thread "main" java.lang.ArithmeticException: long overflow  at java.lang.Math.subtractExact(Math.java:849)  at SubtractExactExample3.main(SubtractExactExample3.java:8)

Next TopicJava Math

Java Math.subtractExact() Method with Examples

Java Math.subtractExact() method

Syntax

Parameter

Return

Example 1

Example 2

Example 3

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