Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Objects (Retired) Delivering the MVP Wrapping up

jatinder kumar
jatinder kumar
Courses Plus Student 4,886 Points

why I this code is not passing challenge?

User author = new User("Jatinder","Kumar");

public class ForumPost {
  private User mAuthor;
  private String mTitle;
  private String mDescription;

  ForumPost(User author,String title,String description)

  public String getDescription() {
    return mDescription;

  public User getAuthor() {
    return mAuthor;

  public String getTitle() {
    return mTitle;

  // TODO: We need to expose the description
public class User {
  private String mFirstName;
    private String mLastName;

  public User(String firstName, String lastName) {
    // TODO:  Set the private fields here


  public String getFirstName()

    return mFirstName;

  public String getLastName()

    return mLastName;


public class Forum {
  private String mTopic;

  Forum(String Topic)

  public String getTopic() {
      return mTopic;

  public void addPost(ForumPost post) {

      System.out.printf("New post from %s %s about %s.\n",

public class Example {

  public static void main(String[] args) {
    System.out.println("Starting forum example...");
    if (args.length < 2) {
       System.out.println("first and last name are required. eg:  java Example Craig Dennis");
     Forum forum = new Forum("Java");
    // Take the first two elements passed args
     User author = new User("Jatinder","Kumar");
    // Add the author, title and description
   ForumPost post = new ForumPost("Jatinder","SEO","SEO is very good technique to promote the business");

1 Answer

When you instantiate the User class the arguments passed in should be from the command line so the line of code should look like this:

User author = new User(args[0], args[1]);

Then when you go to add the user you instantiated to the ForumPost object "post" you should just put in 'author' as the first parameter then you can add a title and a description of your choosing.