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) 

Example

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:

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.