// CSE 142, Summer 2008 (Helene Martin)
// Prompts the user for numbers to add up
// until the sentinel value is supplied

import java.util.*;

public class PrintSum {
	public static final int SENTINEL = -1;
	
	public static void main(String[] args) {
	
		Scanner console = new Scanner(System.in);
		int sum = 0;
		int number = 0;   // "dummy value", anything but -1
		
		System.out.print("Enter a number (" + SENTINEL + " to quit): ");
		number = console.nextInt();
		
		while (number != SENTINEL) {
		 	 sum = sum + number;
		    System.out.print("Enter a number (" + SENTINEL + " to quit): ");
		    number = console.nextInt();
		}
		
		System.out.println("The total is " + sum);
	}
}