Sum of N Natural Numbers in Java

1import java.util.Scanner;
2
3public class Main {
4    public static void main(String[] args) {
5        Scanner sc = new Scanner(System.in);
6
7        System.out.print("Enter N: ");
8        int n = sc.nextInt();
9
10        int sum = n * (n + 1) / 2;
11        System.out.println("Sum of first " + n + " natural numbers = " + sum);
12
13        sc.close();
14    }
15}