# Java – Find Absolute Value of Double – abs() Method with Examples

`java.lang.Math.abs()` method is used to find the absolute value of a double number for the given input (`x` – parameter) in Java. If argument is not negative, the argument is returned as it is, but if the argument is negative then the negation of argument is returned.

## Package

`abs()` method exists in `Math` class of `java.lang` package.
Since: JDK1.0

## Declaration of `abs()` Method

The declaration of `abs()` method is:

## Syntax of `abs()` Method

The syntax of `abs()` method in Java is:

Example

Output:
`632.432516 `
Example
By importing `java.lang` package the syntax of `abs()` method can be used as:

Output:
`385.723 `

## Special Cases of `abs()` Method in Java

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.
Example

Output:
`0.0 0.0 Infinity Infinity NaN`

## Parameters of `abs()` Method in Java

`x` – Where `x` is any valid double input value. This parameter is required.

## Error Handling

If the `x` parameter is not a number `abs()` method returns an `error`.
If there is no argument (`x` – input value) passes to the method, the compiler will produce an `error`.
Example

Output:
`Error`

## Return Value of `abs()` Method in Java

`abs()` method returns the absolute value of a double number for the given input (`x` – parameter).

## Java `abs()` Method Example 1

Output:
`absolute value of a Negative Value: 367.344 absolute value of a Positive Value: 6258.3825 absolute value of Zero: 0.0 `

## Java `abs()` Method Example 2

Output:
`1.7976931348623157E308 4.9E-324 NaN 1022.0 1.8393666E-12 351.7569 0.0 7.4444 2113729.4`