What is the problem in the code ?

Question about the task

Adding

Java Syntax, Level 4, Lesson 16

Under discussion

Use the keyboard to enter numbers.
If the user enters -1, display the sum of all entered numbers and end the program.
-1 should be included in the sum.

Hint: one of the solutions to this problem uses the following construct:

while (true) {
    int number = read the number;
    if (check whether the number is -1)
        break;
}

Requirements:

The program should read the numbers from the keyboard.
If the user enters -1, the program should display the sum of all entered numbers and then end.
The program must calculate and display the sum of the entered numbers.
The program must use a for loop or a while loop.

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 reader = new BufferedReader(new InputStreamReader(System.in)); int i = Integer.parseInt(reader.readLine()); int sum = 0; while(i != 0){ sum = sum + i; i = Integer.parseInt(reader.readLine()); if(i == -1) break; } System.out.println(sum); } }

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Guadalupe Gagnon

Level 37 , Tampa, United States

3 October 2019, 17:39

Your task will not conclude if the first number entered is "-1", however it will end if the first number entered is "0". This is violating the task requirements that say the program should conclude after the number "-1" is entered. Example inputs with your output and the correct output: Inputs: 0, 1, 2, 3, -1 Your Output: 0 Correct output: 5 Inputs: -1 ,0, 1, 2, 3, -1 Your Output: 4 Correct output: -1 Inputs: 1, 2, 3, -1 Your Output: 5 Correct output: 5 As you can see, the only time your code came out correct was on the third example. Figure out how to correct your code so that the other times are correct as well.