Method main

Lecture 07_Loops/src/WhileLoop.java:5–20

(String[] args)

//print 1 to n
public class WhileLoop {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int sum = 0;

        int num = 1;

        while (num <= n){
//            System.out.println(num);
            sum = sum + num;
            num++; // increment operator ++ , num = num + 1
        }

        System.out.println(sum);

    }
}