nextAfter()

Example

Calculate the subsequent floating-point number in varying directions for different input values.

System.out.println(Math.nextAfter(1, 2));
System.out.println(Math.nextAfter(1, 0));
System.out.println(Math.nextAfter(0.5f, 1.0f));
System.out.println(Math.nextAfter(0.5f, 0.0f));

Definition and Usage

The nextAfter() method in Java retrieves the floating-point number that is adjacent to a given number �x in the direction specified by another number �y.

If �y is greater than �x, the method finds the next smallest floating-point number greater than �x. If �y is less than �x, it identifies the next largest floating-point number smaller than �x. If �y equals �x, the method returns �x.

Notably, for double type arguments, the returned value will be closer to �x than for float type arguments.

Syntax

One of the following:

public static double nextAfter(double x, double y) 

public static float nextAfter(float x, double y) 

Parameter Values

Technical Details