.negateExact()

The Math.negateExact() method returns the negation of the argument and raises an exception if the result overflows.

Math.negateExact(num)

The num parameter can be of type int or long.

The following example demonstrates using the .negateExact() method:

// Test.java
public class Test {
  public static void main(String args[]) {
    int num_int = 12;
    long num_long = 123L;
    System.out.println(Math.negateExact(num_int));
    System.out.println(Math.negateExact(num_long));
  }
}

This results in the following output:

-12
-123