negateExact()

Example

Alter the signs of various numbers.

System.out.println(Math.negateExact(15));
System.out.println(Math.negateExact(-32));
System.out.println(Math.negateExact(7));
System.out.println(Math.negateExact(-25));

Definition and Usage

The negateExact() method in Java returns an integer with the same absolute value but the opposite sign of another integer, while handling overflow situations by throwing an exception. This safeguards against inaccuracies that may arise due to overflow.

An overflow typically arises when the integer reaches the minimum value, such as Integer.MIN_VALUE or Long.MIN_VALUE, representing the largest negative integer, as it lacks a positive equivalent.

Syntax

One of the following:

public static int negateExact(int x)

 public static long negateExact(long x)

Parameter Values

Technical Details