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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 number = 0; int total = 0; while(true) { int a = Integer.parseInt(reader.readLine()); if(a == -1) { total += a; System.out.println(total); break; } //System.out.println(total); } } }

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Jeff Jeffy

Level 15 , Irvine, United States

19 March 2019, 04:28

All things wrong: (1) int inside of a while loop may cause issues due to repeatedly declaring variables. I suggest you delcare them like this

int total=0,a=0;

(2)

if(a == -1)
            {
                total += a;
                System.out.println(total);
                break;
            }

in that section, you force the use to type -1 in order to add. This is the complete opposite of what you need. (3) Uncomment line 27.

//System.out.println(total);

You need to to fulfill task conditions.

Mrunali Punde

Level 6 , Mumbai, India

16 March 2019, 06:39

write the total+=a line before the if block. and print the total after the if block.

Nastya Varennikova

Level 11 , Sumy, Ukraine

12 March 2019, 22:01

System.out.println(total-1);
//in 27-th lines

Guadalupe Gagnon

Level 37 , Tampa, United States

12 March 2019, 14:01

The code doesn't add anything to total except -1. You could enter millions of numbers, but the output would be -1 because line 23 is the only line that adds anything to 'total', and that is in the if block that will only be run if 'a' is equal to -1. Try moving line 23 to before the if block.

Kholmamat

Level 12 , Uzbekistan Navoi, Uzbekistan

12 March 2019, 12:07

U hava to print result after cycle.