Second and fifth tasks not passing ( but I clearly have output)?

Question about the task

Under discussion

package com.codegym.task.task10.task1019;

import java.io.*;
import java.util.HashMap;
import java.util.Map;

/*
Functionality is not enough!

*/

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        // create a hashmap
        HashMap<String, Integer> map = new HashMap<>();

        while (true)
        {
            String id = reader.readLine();
            String name = reader.readLine();

            // conditional to end entry
            if (!id.isEmpty() || !name.isEmpty())
            {
                int idInt = Integer.parseInt(id);
                map.put(name, idInt);
            }
            else
            {
                for (Map.Entry<String, Integer> pair : map.entrySet())
                {
                    System.out.println(pair.getValue() + " " + pair.getKey());
                }
                System.out.println(id + " " + name);
                break;
            }
        }
    }
}

Task: The program reads a pair (a number and string) from the keyboard and displays it on the screen.
New task: The program reads pairs (a number and string) from the keyboard and stores them in a HashMap.
Any empty input signifies the end of data entry.
The numbers can be repeated.
The strings are always unique.
The entered data must not be lost!
The program then displays the contents of the HashMap on the screen.
Each pair on a new line.

Example input:
1 Sam 2 I 1 Am

Example output:
1 Sam 2 I 1 Am

Requirements:

The program must read data from the keyboard.
The program should display text on the screen.
In the main method, declare a HashMap variable and immediately initialize it.
The program should put the pairs read from the keyboard into the HashMap.
The program should display the contents of the HashMap in accordance with the conditions. The key and value are separated by a space. Each value should be on a new line.

package com.codegym.task.task10.task1019; import java.io.*; import java.util.HashMap; import java.util.Map; /* Functionality is not enough! */ public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); // create a hashmap HashMap<String, Integer> map = new HashMap<>(); while (true) { String id = reader.readLine(); String name = reader.readLine(); // conditional to end entry if (!id.isEmpty() || !name.isEmpty()) { int idInt = Integer.parseInt(id); map.put(name, idInt); } else { for (Map.Entry<String, Integer> pair : map.entrySet()) { System.out.println(pair.getValue() + " " + pair.getKey()); } System.out.println(id + " " + name); break; } } } }

Comments (1)

Popular
New
Old

You must be signed in to leave a comment

Szymon

Level 41 , Warsaw, Poland

13 May 2021, 21:24

I guess the issue can be with accepting the empty value which should immidiately end the program. It doesn't always happen in your code because it asks for first input and then immiadiately asks for second one without veryfing if the first one was empty.