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Java Java Objects (Retired) Delivering the MVP Wrapping up

Charlene Allfrey
Charlene Allfrey
5,865 Points
Posted by Charlene Allfrey
Charlene Allfrey
5,865 Points

Delivering the MVP - Wrapping up last challenge

The issue shows up on line 12 but I can't figure out what I've done wrong. I get the error

"Bummer! I expected to see the names I passed in through the args, but I do not. Hmm."

the ForumPost instantiation calls for args of User, String, String which is what I have listed, so what am I missing here? Hoping another set of eyes can help me out on this one.

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

  public ForumPost(User author, String title, String description) {
   mAuthor = author;
    mTitle = title;
    mDescription = description;
  }

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  // TODO: We need to expose the description
  public String getDescription() {
   return mDescription; 
  }
}
User.java 
public class User {
  private String mFirstName;
  private String mLastName;

  public User(String firstName, String lastName) {
    // TODO:  Set the private fields here
    mFirstName = firstName;
    mLastName = lastName;
  }

  public String getFirstName() {
   return mFirstName; 
  }

  public String getLastName() {
   return mLastName; 
  }

}
Forum.java 
public class Forum {
  private String mTopic;

  public Forum(String postTopic) {
   mTopic = postTopic; 
  }

  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("Charlie","Brown");
    // Add the author, title and description
     ForumPost post = new ForumPost(author, "Happy", "Day");
     forum.addPost(post);
  }
}

2 Answers

ISAIAH S
ISAIAH S
1,409 Points

Hmm... Here's my code:

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

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }


  public ForumPost(User author, String title, String description){
    mAuthor = author;
     mTitle = title;
     mDescription =  description;
  }

  // TODO: We need to expose the description
  public String getDescription(){
    return mDescription;
  }

}

public class User {
  private String mFirstName;
  private String mLastName;

  public User(String firstName, String lastName) {
    // TODO:  Set the private fields here
    mFirstName = firstName;
    mLastName = lastName;
  }

  public String getFirstName(){
    return mFirstName;
  }

  public String getLastName(){
    return mLastName;
  }

}

public class Forum {
  private String mTopic;

  public String getTopic() {
      return mTopic;
  }

  Forum(String topic){
    mTopic = topic;
  }

  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());

  }
}

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(args[0], args[1]);
    // Add the author, title and description
    ForumPost post = new ForumPost(author, "ISAIAH", "S");
    forum.addPost(post);
  }
}

hope it helps!! ISAIAH S :zap:

Charlene Allfrey
Charlene Allfrey
5,865 Points
Charlene Allfrey
Charlene Allfrey
5,865 Points

OMG I knew it was going to be something simple that I was just overlooking. Thanks Isaiah I will go back and give it another try.

ISAIAH S
ISAIAH S
1,409 Points
ISAIAH S
ISAIAH S
1,409 Points

I see what you did wrong. You had no errors, just you don't want the user to be Charlie Brown, you want it to be what you type after 

clear && javac Forum.java && java Forum

Thanks!!