Java - Math abs(long) method



Description

The Java 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 1

The following example shows the usage of Math abs() method to get absolute value of a positive long value.

package com.tutorialspoint;
import java.lang.Math;
public class MathDemo {
   public static void main(String[] args) {

      // get a long to find its absolute values
      long x = 4876L;
   
      // get and print its absolute value
      System.out.println("Math.abs(" + x + ")=" + Math.abs(x));
   }
}

Output

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

Math.abs(4876)=4876

Example 2

The following example shows the usage of Math abs() method to get absolute value of a zero long value.

package com.tutorialspoint;
import java.lang.Math;
public class MathDemo {
   public static void main(String[] args) {

      // get a long to find its absolute values
      long x = -0L;
   
      // get and print its absolute value
      System.out.println("Math.abs(" + x + ")=" + Math.abs(x));
   }
}

Output

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

Math.abs(0)=0

Example 3

The following example shows the usage of Math abs() method to get absolute value of a negative long value.

package com.tutorialspoint;
import java.lang.Math;
public class MathDemo {

   public static void main(String[] args) {

      // get a long to find its absolute values
      long x = -9999L;
   
      // get and print its absolute value
      System.out.println("Math.abs(" + x + ")=" + Math.abs(x));
   }
}

Output

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

Math.abs(-9999)=9999
java_lang_math.htm
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