# Java.lang.Math.abs() Method

## Description

The java.lang.Math.abs(double a) returns the absolute value of a double 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 double abs(double a)
```

## Parameters

a − the argument whose absolute value is to be determined

## Return Value

This method returns the absolute value of the argument.

NA

## Example

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

```package com.tutorialspoint;

import java.lang.Math;

public class MathDemo {

public static void main(String[] args) {

// get some doubles to find their absolute values
double x = 4876.1874d;
double y = -0.0d;

// 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(-9999.555d)=" + Math.abs(-9999.555d));
}
}
```

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

```Math.abs(4876.1874d)=4876.1874
Math.abs(-0.0d)=0.0
Math.abs(-9999.555d)=9999.555
```
java_lang_math.htm