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Java Java Objects (Retired) Delivering the MVP Wrapping up

I expected to see names I passed in through args but I do not.

The task is finished but I still get the error, WHat should I do?

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

  public ForumPost(User userAuthor, String title, String description){

    this.mAuthor=userAuthor;
    this.mTitle=title;
    this.mDescription=description;



  }

   public String getDescription(){
    return mDescription;
    }

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  // TODO: We need to expose the description
}
User.java
public class User {
    private String mFirstName;
    private String mLastName;
  public User(String firstName, String lastName) {
    this.mFirstName=firstName;
    this.mLastName=lastName;
    }
   public String getFirstName(){
    return mFirstName;
    }
    public String getLastName(){
    return mLastName;
    } 
}
Forum.java
public class Forum {
  private String mTopic;

  public Forum(String topic){
  mTopic=topic;
  }
  public String getTopic() {
      return mTopic;
  }

  public void addPost(ForumPost post) {
      // When all is ready uncomment this...
      System.out.printf("New post from %s %s about %s.\n",
                         post.getAuthor().getFirstName(),
                         post.getAuthor().getLastName(),
                         post.getTitle());

  }
}
Example.java
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("Asser", "Moussa");
     //Add the author, title and description
     ForumPost post = new ForumPost( author ,"Kotla fel Fara3","Book");
     forum.addPost(post);
  }
}

1 Answer

Ken Alger
STAFF
Ken Alger
Treehouse Teacher

Shaji;

For this code challenge, in Example.java we are wanting to be able to pass in names of various authors. You have hard coded the name and therefore when the challenge engine is passing in "William Shakespeare" for the name, it can't do anything with it. That is what the error is saying. Try using args[0] and args[1] instead. You might have better luck. :wink:

Also, just as a matter of cleaner code, you don't need the this in front of your member variables in ForumPost.java or User.java. If you would like further explanation on that, post another question in the forum and tag me in there and either myself or someone else will provide the explanation.

Happy coding,
Ken