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 Delivering the MVP Forum

I don't understand what I'm doing wrong?

I'm on the last part of this challenge but i can't find a solution.

Forum.java
public class Forum {
  private String topic;

  // TODO: add a constructor that accepts a topic and sets the private field topic
public Forum (String topic){
  this.topic = topic;
}
  public String getTopic() {
    return topic;
  }


   Uncomment this when you are prompted to do so
  public void addPost(ForumPost post) {
    System.out.printf("A new post in %s topic from %s %s about %s is available",
            topic,
            post.getAuthor().getFirstName(),
            post.getAuthor().getLastName(),
            post.getTitle()
    );
  }
  */

}
User.java
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;
  }
}
ForumPost.java
public class ForumPost {
  private User author;
  private String title;
  private String description;

  // TODO: add a constructor that accepts the author, title and description
public ForumPost(User author, String title, String description){
  this.author = author;
  this.title = title;
  this.description = description;
}
  public User getAuthor() {
    return author;
  }

  public String getTitle() {
    return title;
  }

  public String getDescription() {
    return description;
  }
}
Main.java
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");
      System.exit(1);
    }
    Uncomment this when prompted
    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,"Money makes cense", "bout fuckin time");
    forum.addPost(post);

// */
  }

}

1 Answer

andren
andren
28,558 Points

Your code is fine, but you have left some commentary that should have been removed when you uncommented some of the code. Specifically:

  1. In Forum.java you have the line "Uncomment this when you are prompted to do so" above the addPost method which you should remove or comment out.

  2. In Forum.java you have left the end of block comment symbols "*/" below the addPost method, you need to remove that.

  3. In Main.java above the line where you instantiate the Forum object you have this line "Uncomment this when prompted" which needs to be commented out or removed.

After fixing those three issues your code should run fine.

Dude thank you so much! I was getting so frustrated, it's 4:16am right now. I've been coding all night, now I can go to sleep. Thanks :)