Not sure why final condition is not passing

Question about the task

Under discussion

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; /* Functionality is not enough! */ public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); HashMap<String, Integer> map = new HashMap<String, Integer>(); boolean dataComplete = false; while (reader.ready()) { String key = reader.readLine(); String value = reader.readLine(); if (key.isEmpty() || value.isEmpty()) { dataComplete = true; } int id = Integer.parseInt(key); String name = value; map.put(name, id); if (dataComplete == true) { break; } } map.forEach((name, number) -> { System.out.printf("%s %s\n", number, name); }); } }

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Bipin kanani

Level 11 , Ahmedabad, India

8 September 2020, 12:11

please run this code and task will be passed. public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); HashMap<String, Integer> map = new HashMap<String, Integer>(); try{ while(true){ String x=reader.readLine(); if(x.isEmpty()) break; int id=Integer.parseInt(x); String name=reader.readLine(); if(name.isEmpty()){map.put("",id); break;} map.put(name,id); } }catch(NullPointerException e){System.out.println(e);} for(Map.Entry<String,Integer> entry : map.entrySet()){ System.out.println(entry.getValue()+" "+entry.getKey()); } } }

Thomas Zehe

Level 17 , Berlin, Germany

22 April 2020, 17:23

Hi, 1) check the condition again it should print (number string), which means check again you're HashMap types for key and value. 2) this reader.ready() is not working in that case. I run your code and it was not asking me for the input, so maybe check your condition again. 3) int id = Integer.parseInt(key); map.put(id, value); 4) there is also a twist (key, value) in the print method Hope this could help somehow. Have fun!