Java.lang.Math.abs() Method

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Description

The java.lang.Math.abs(long a) returns the absolute value of a long value. If the argument is not negative, the argument is returned. If the argument is negative, the negation of the argument is returned. Note that if the argument is equal to the value of Long.MIN_VALUE, the most negative representable long value, the result is that same value, which is negative.

Declaration

Following is the declaration for java.lang.Math.abs() method

public static long abs(long a)

Parameters

a − the argument whose absolute value is to be determined

Return Value

This method returns the absolute value of the argument.

Exception

NA

Example

The following example shows the usage of lang.Math.abs() method.

package com.tutorialspoint;

import java.lang.*;

public class MathDemo {

   public static void main(String[] args) {

      // get some longs to find their absolute values
      long x = 76487687634l;
      long y = -1876487618764l;
   
      // get and print their absolute values
      System.out.println("Math.abs(" + x + ")=" + Math.abs(x));
      System.out.println("Math.abs(" + y + ")=" + Math.abs(y));
      System.out.println("Math.abs(-18885785959l)=" + Math.abs(-18885785959l));
   }
}

Let us compile and run the above program, this will produce the following result −

Math.abs(76487687634l)=76487687634
Math.abs(-1876487618764l)=1876487618764
Math.abs(-18885785959l)=18885785959