Java Program to Print Even Numbers from 1 to N - The Coding Shala

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 In this post, we will learn how to Display Even Numbers from 1 to n using Java Program.

Java Program to Print Even Numbers from 1 to N

Write a Java Program to display even numbers from 1 to given n. We can use Java loops here.

Example 1:

Input: 5

Output: 2

             4

Approach:

We can use a for loop from 1 to n and will check if the current number is divisible by 2, if it is divisible by 2 then it's an even number else not.

We can also start from 2 and increase the current number in the loop by 2 and print all the numbers till n.

Java Program: 

/**
 * https://www.thecodingshala.com/
 */

import java.util.Scanner;

public class Main {

    public static void printEvenNumbers(int n) {
        for(int i = 1; i <= n; i++) {
            // if number is divisible by 2 then its even
            if(i%2 == 0) {
                System.out.println(i);
            }
        }
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter value of n");
        int n = sc.nextInt();
        System.out.println("Even numbers from 1 to " + n + " are: ");
        printEvenNumbers(n);
    }
}

Output: 

Enter value of n
17
Even numbers from 1 to 17 are: 
2
4
6
8
10
12
14
16

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