I don't understand

Question about the task

Console-based piggy bank

Java Syntax, Level 5, Lesson 12

Under discussion

I'm really not sure where I've gone wrong, please help.

Use the keyboard to enter numbers and calculate their sum until the user enters the word "sum".
Display the resulting sum on the screen.

Hint: to read from the keyboard until the string 'exit' is input, do this:

BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
while (true)
{
	String s = buffer.readLine();
	if (s.equals("exit"))
		break;
}

Requirements:

The program must read data from the keyboard.
The program should stop reading data from the keyboard after the user enters the word "sum" in lowercase letters and presses Enter.
The program should work correctly if the user enters one number and the word "sum".
The program should work correctly if the user enters two numbers and the word "sum".
The program should work correctly if the user enters more than two numbers and the word "sum".
The program should display text on the screen.

package com.codegym.task.task05.task0529; import java.io.BufferedReader; import java.io.InputStreamReader; /* Console-based piggy bank */ public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in)); int x = 0; while (true) { String s = buffer.readLine(); int a = Integer.parseInt(s); x =x+a; if (s.equals("sum")) break; } System.out.println(x); } }

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Guadalupe Gagnon

Level 37 , Tampa, United States

15 October 2019, 19:56

Have you tested the code yet to see if it works? When I enter "sum" the code crashes with a NumberFormatException saying that it cannot turn the word "sum" into a number.

Anthony Chalk

Level 30 , London, United Kingdom

15 October 2019, 20:03

thanks I changed it around and it works now