Write a Java program to find sum of all even numbers between 1 to n

Find sum of all even numbers between 1 to n

Sample Output

Find sum of all even numbers between 1 to n.

Enter a number: 10
2
4
6
8
10
Sum: 30

Java-Source Code

//package loopinjava;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        int n, number, sum = 0;

        Scanner input = new Scanner(System.in);

        System.out.println("Find sum of all even numbers between 1 to n.\n");

        System.out.print("Enter a number: ");
        number = input.nextInt();

        for (n = 1; n <= number; n++) {
            
            if (n % 2 == 0) {
                
                sum += n; // Or, sum = sum + n;
                System.out.println(n);
            }

        }
        System.out.println("Sum: " + sum);
    }
}

Sample Output

Find sum of all even numbers between 1 to n.

Enter a number: 12
2
4
6
8
10
12
Sum: 42