What's the bug bro ?

Question about the task

Shared last names and first names

Java Syntax, Level 8, Lesson 11

Resolved

Point out the error please!

1. Create a Map<String, String> and add 10 people represented by (last name, first name) pairs.
2. Among these 10 people, let there be people who share the same first names.
3. Among these 10 people, let there be people who share the same last names.
4. Display the contents of the Map on the screen.

Requirements:

The program should display text on the screen.
The Solution class must have only three methods.
The createPeopleMap() method must create and return a Map with (String, String) elements. Also, add 10 people to the map.
In the createPeopleMap() method, you need to add people with the same last name.
In the createPeopleMap() method, you need to add people with the same first name.
The printPeopleMap() method should display all people in the Map. Display each value on a new line. The last name and first name should be separated by a space.
The main() method should call the createPeopleMap() method.
The main() method should call the printPeopleMap() method.

package com.codegym.task.task08.task0821; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Scanner; /* Shared last names and first names */ public class Solution { public static Map<String, String> createPeopleList() { Map<String, String> names = new HashMap<>(); Scanner sc = new Scanner(System.in); for (int i = 0; i < 10; i++) { String firstname = sc.nextLine(), lastname = sc.nextLine(); names.put(lastname, firstname); } return names; } public static void printPeopleList(Map<String, String> map) { for (Map.Entry<String, String> s : map.entrySet()) { System.out.println(s.getKey() + " " + s.getValue()); } } public static void main(String[] args) { Map<String, String> map = createPeopleList(); printPeopleList(map); } }

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Yordan Popov

Level 12 , Asenovgrad, Bulgaria

3 August 2020, 11:03

The conditions says: "The createPeopleMap() method must create and return a Map with (String, String) elements. Also, add 10 people to the map." In the tasks the method is called "createPeopleList". This is one of the mistakes. U don`t need for cycle. Just put the names like: "names.put("fdas", "Ciao");" and make sure at least one of them has the same last name like: "names.put("fdas", "Ciao");" "names.put("fdas", "asdasdas");"

Guadalupe Gagnon

Level 37 , Tampa, United States

20 March 2019, 17:26

solution

This tasks requires you to hard code the first and last name, not get user inputs. Make this change, and make sure that some have the same first name and some have the same last name, and you should pass.

Joy Majumdar

Level 16 , Kolkata, India

21 March 2019, 04:14

So friend just I have to change that input thing and put some same last names and first names.Rest are okay ?

Joy Majumdar

Level 16 , Kolkata, India

21 March 2019, 04:37

Brother it passed but why there was a problem with inputs it is nowhere mentioned that we cannot take inputs we just need <key,value>.

Guadalupe Gagnon

Level 37 , Tampa, United States

21 March 2019, 13:12

It does not say that it is supposed to take user inputs. The verification system tests your code in very specific ways. In this case, it is looking to test a map that has values already in it and has no way of putting its own values in it.