Java - Math abs(float) method



Description

The Java Math abs(float a) returns the absolute value of a float value. If the argument is not negative, the argument is returned. If the argument is negative, the negation of the argument is returned.Special cases −

  • If the argument is positive zero or negative zero, the result is positive zero.
  • If the argument is infinite, the result is positive infinity.
  • If the argument is NaN, the result is NaN.

Declaration

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

public static float abs(float 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 float value.

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

      // get a float to find its absolute values
      float x = 4876.1874f;
   
      // 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(4876.1875)=4876.1874

Example 2

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

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

      // get a float to find its absolute values
      float x = -0.0f;
   
      // 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)=0.0

Example 3

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

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

      // get a float to find its absolute values
      float x = -9999.555f;
   
      // 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(-9999.555)=9999.555
java_lang_math.htm
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