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Java Java Objects Delivering the MVP Forum

isaiah yarborough
isaiah yarborough
7,260 Points

Can someone please help

I need help with this last code challenge

public class Forum {
  private String topic;

    public Forum(String topic){
    this.topic = topic; // <--- same here :)

  // TODO: add a constructor that accepts a topic and sets the private field topic

  public String getTopic() {
    return topic;

  public void addPost(ForumPost post) {
    System.out.printf("A new post in %s topic from %s %s about %s is available",

public class User {
  // TODO: add private fields for firstName and lastName
  private String firstName;
  private String lastName;

  public User(String firstName, String lastName) {
    // TODO: set and add the private fields
    this.firstName = firstName;
    this.lastName = lastName;


  // TODO: add getters for firstName and lastName
  public String getFirstName() {
    return firstName;  

  public String getLastName() {
    return lastName;  

public class ForumPost {
  private User author;
  private String title;
  private String description;

  public ForumPost(User author, String title, String description){
   this.Author = author;
   this.Title = title;
    this.Description = description;

  // TODO: add a constructor that accepts the author, title and description

  public User getAuthor() {
    return author;

  public String getTitle() {
    return title;

  public String getDescription() {
    return description;
public class Main {

  public static void main(String[] args) {
    System.out.println("Beginning forum example");
    if (args.length < 2) {
      System.out.println("Usage: java Main <first name> <last name>");
      System.err.println("<first name> and <last name> are required");

    Forum forum = new Forum("Java");
    // TODO: pass in the first name and last name that are in the args parameter

    User author = new User(args[0], args[1]);
    // TODO: initialize the forum post with the user created above and a title and description of your choice
    ForumPost post = new ForumPost(author, "Whats good to eat", "Apple pie");



2 Answers

Hi there,

In ForumPost you have capitalised the member variables in the constructor:

// change

    this.Author = author; 
    this.Title = title;
    this.Description = description;

// to 
    this.author = author;
    this.title = title;
    this.description = description;

I'll check the rest now ...


That's it - just those three capital letters and you've done it! Good work. :smile: