Question

Write a java program to find the sum of all even numbers between 1 to n - using while loop

Answer 1

import java.util.Scanner;


class App {
	public static void main(String[] args) {
		Scanner keyBoard = new Scanner(System.in);
		System.out.print("Ente n: ");
		int n = keyBoard.nextInt();
		int i=1;
		int sum=0;
	    while(i<=n){
	        if(i%2==0){
	            sum+=i;    
	        }
	        i++;
	    }
	    System.out.println("Sum: "+sum);
		keyBoard.close();




	}




}