# Java.lang.StrictMath.nextUp() Method

## Description

The java.lang.StrictMath.nextUp(float f) method returns the floating-point value adjacent to f in the direction of positive infinity. This method is semantically equivalent to nextAfter(f, Float.POSITIVE_INFINITY).A nextUp implementation may run faster than its equivalent nextAfter call. It include these cases −

• If either argument is a NaN, then NaN is returned.
• If the argument is positive infinity, the result is positive infinity.
• If the argument is zero, the result is Float.MIN_VALUE

## Declaration

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

```public static float nextUp(float f)
```

## Parameters

d − This is the starting floating-point value.

## Return Value

This method returns the adjacent floating-point value closer to positive infinity.

NA

## Example

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

```package com.tutorialspoint;

import java.lang.*;

public class StrictMathDemo {

public static void main(String[] args) {

float f1 = 35.9f , f2 = 58.8f;

// returns the floating-point value adjacent to f1
float nextUpValue = StrictMath.nextUp(f1);
System.out.println("Next upper value of f1 : " + nextUpValue);

// returns the floating-point value adjacent to f2
nextUpValue = StrictMath.nextUp(f2);
System.out.println("Next upper value of f2 : " + nextUpValue);
}
}
```

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

```Next upper value of f1 : 35.900005
Next upper value of f2 : 58.800003
```
java_lang_strictmath.htm