# Java.lang.Math.abs() Method

## Description

The java.lang.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.

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 floats to find their absolute values
float x = 1.2345f;
float y = -857.54f;

// 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(-145.0f)=" + Math.abs(-145.0f));
}
}
```

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

```Math.abs(1.2345f)=1.2345
Math.abs(-857.54f)=857.54
Math.abs(-145.0f)=145.0
```
java_lang_math.htm