# Java.lang.StrictMath.copySign() Method

The java.lang.StrictMath.copySign(float magnitude, float sign) method returns the first floating-point argument with the sign of the second floating-point argument. For this method, a NaN sign argument is always treated as if it were positive.

## Declaration

Following is the declaration for java.lang.StrictMath.copySign() method

```public static float copySign(float magnitude, float sign)
```

## Parameters

• magnitude − This is the parameter providing the magnitude of the result

• sign − This is the parameter providing the sign of the result

## Return Value

This method returns a value with magnitude and sign.

NA

## Example

The following example shows the usage of java.lang.StrictMath.copySign() method.

```package com.tutorialspoint;

import java.lang.*;

public class StrictMathDemo {

public static void main(String[] args) {

float f1 = 3 , f2 = -1, f3 = 1 , f4 = -14;

/* returns the first floating-point argument with the sign of the
second floating-point argument */

float signedValue = StrictMath.copySign(f1 , f2);
System.out.println("value of f1 with sign f2 : " + signedValue);

signedValue = StrictMath.copySign(f1 , f3);
System.out.println("value of f1 with sign f3 : " + signedValue);

signedValue = StrictMath.copySign(f2 , f4);
System.out.println("value of f2 with sign f4 : " + signedValue);
}
}
```

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

```value of f1 with sign f2 : -3.0
value of f1 with sign f3 : 3.0
value of f2 with sign f4 : -1.0
```
java_lang_strictmath.htm
##### Kickstart Your Career

Get certified by completing the course