Java Math.nextUp() method with Examples

by Online Tutorials Library July 22, 2022

Java Math.nextUp() Method

The java.lang.Math.nextUp() is a inbuilt math method in java. It returns the floating-point value adjacent to the user specified parameter (d) in the direction of positive infinity. This method is equivalent to nextAfter(d, Double.POSITIVE_INFINITY) method.
Implementation of nextUp may run faster than its equivalent nextAfter call.

Syntax:

Parameter

Return:

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

If the argument is a NaN, this method will return NaN.
If the argument is Zero and we are dealing with double, this method will return Double.MIN_VALUE.
If the argument is zero and we are dealing with float, this method will return Float.MIN_VALUE.
If the argument is Positive Infinity, this method will return Positive Infinity.

Example 1

  public class NextUpExample1  {      public static void main(String[] args)       {           float x = 0.0f / 0;          // Input NaN, Output NaN          System.out.println(Math.nextUp(x));      }  }  

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Output:

NaN

Example 2

  public class NextUpExample2  {      public static void main(String[] args)       {          double x = 744.93;          // Input double value, Output adjacent floating-point          System.out.println(Math.nextUp(x));      }  }  

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Output:

744.9300000000001

Example 3

  public class NextUpExample3   {      public static void main(String[] args)       {          float a = 328.7f;          // Input float value, Output adjacent floating-point          System.out.println(Math.nextUp(a));      }  }  

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Output:

328.70004

Example 4

  public class NextUpExample4   {      public static void main(String[] args)       {           float x = 0.0f;          // Input zero, Output Float.MIN_VALUE for float          System.out.println(Math.nextUp(x));      }  }  

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Output:

1.4E-45

Example 5

  public class NextUpExample5  {      public static void main(String[] args)       {          double b = 0.0;          // Input zero, Output Double.MIN_VALUE for double          System.out.println(Math.nextUp(b));      }  }  

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Output:

4.9E-324

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Java Math.nextUp() method with Examples

Java Math.nextUp() Method

Syntax:

Parameter

Return:

Example 1

Example 2

Example 3

Example 4

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