I've been trying for several minutes now and I don't know how to get this to work.
package com.codegym.task.task04.task0442;
/*
Adding
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
//write your code here
BufferedReader i = new BufferedReader(new InputStreamReader(System.in));
String sNum = i.readLine();
int sum = 0;
while (true) {
int num = Integer.parseInt(sNum);
sum = sum + num;
if (num == -1) {
break;
}
}
System.out.println(sum);
}
}