Java.lang.StrictMath.nextUp() Method


The java.lang.StrictMath.nextUp(double d) method returns the floating-point value adjacent to d in the direction of positive infinity. This method is semantically equivalent to nextAfter(d, Double.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 Double.MIN_VALUE


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

public static double nextUp(double d)


d − This is the starting floating-point value.

Return Value

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




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) {

      double d1 = 95.1200000000000 , d2 = 49.32;
      // returns the floating-point value adjacent to d1
      double nextUpValue = StrictMath.nextUp(d1); 
      System.out.println("Next upper value of d1 : " + nextUpValue);

      // returns the floating-point value adjacent to d2
      nextUpValue = StrictMath.nextUp(d2); 
      System.out.println("Next upper value of d2 : " + nextUpValue);

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

Next upper value of d1 : 95.12000000000002
Next upper value of d2 : 49.32000000000001
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