Java Math floor example

Java math floor function is used to get largest integer which is lesser than number.

Syntax

public static double floor(double x)

Let’s use math’s floor function in the example.

package org.arpit.java2blog;

public class MathFloorMain {

public static void main(String[] args) {

// Use math.floor to get largest integer lesser

// than number

System.out.println("floor value for 2.6 = " + Math.floor(2.6));

System.out.println("floor value for 26.1 = " + Math.floor(26.1));

System.out.println("floor value for -0.8 = " + Math.floor(-0.8));

System.out.println("floor value for -6.2 = " + Math.floor(-6.2));

float f=4.6f;

System.out.println("floor value for 4.6f = " + Math.floor(f));

}

When you run above program, output of the program will be:

Ceil value for 2.6 = 3.0
Ceil value for 26.1 = 27.0
Ceil value for -0.8 = -0.0
Ceil value for -6.2 = -6.0
Ceil value for 4.6f = 5.0

Few points about Math.ceil function:

In case of Nan or infinity or zero, it will give you same result as argument.
If you pass a value which is already equal to integer, it will result in same value.

That’s all about Java math floor function.