Sum of range of numbers

import java.util.*;
public class ex3 {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int num1, num2, x, sum = 0;
		System.out.println("Enter two numbers");
		num1 = in.nextInt();
		num2 = in.nextInt();
		x = num1;
		while(x<=num2) {
			System.out.print(x + " ");
			sum+=x;
			x++;
		}
		System.out.println("Sum of numbers is " + sum);
	}
}