How to use nextUp(double d) in Java

The static nextUp() method returns the floating-point value adjacent to N (argument value), but in the direction of positive infinity.

Syntax

static double nextUp(double N)

Parameters

N: The initial floating-point value

Return value

This function will return the adjacent floating-point value in the direction of positive infinity (+∞).

Special cases

Here are some special cases regarding nextUp():

  • If the argument is NaN, then the result will also be NaN.
  • If the argument is positive infinity, we will get positive infinity as a result.
  • If we give zero as an argument, then the output will be Double.MIN_VALUE.

Code

The following code illustrates how to use Math.nextUp().

import java.lang.*;
public class EdPresso {
   public static void main(String[] args) {
      // initialize the variables with double values
      double n1 = 91868.321;
      double n2 = 786;
      // printing the next floating-point values directed towards positive infinity
      System.out.println("Math.nextUp(" + n1 + ")= " + Math.nextUp(n1));
      System.out.println("Math.nextUp(" + n2 + ")= " + Math.nextUp(n2));
   }
}
  • In lines 5 and 6, n1 and n2 are declared and assigned values.
  • In lines 8 and 9, we pass n1 and n2 to the Math.nextUp method.

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