Math.round() method in java

• By using java.lang.math.round in java we will get crossest numbers.
• If we pass double number with some decimal points it will returns closest integer or long  number. 
• If we pass float number with some decimal points it will return closest integer or long number.
• Lets see an example program on how to use math.random() method.
• Math.random() method will returns closest int or long numbers.

Java program to round double number using math.random() method in java

1. package com.mathrandommethod;
2.  
3. public class MathRandom {
4.         /**
5.          * Math.random() in java
6.          * @author www.instanceofjava.com
7.          */
8.     public static void main(String[] args) {
9.         
10.           float float1 = 23.34f;
11.           float float2 = 23.623f;
12.           double double1 = 234.433;
13.          double double2 = 234.654;
14.  
15.           System.out.println(Math.round(float1));
16.           System.out.println(Math.round(float2)); 
17.           System.out.println(Math.round(double1)); 
18.           System.out.println(Math.round(double2));
19.  }
20.  
21. }

Output:

1. 23
2. 24
3. 234
4. 235