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Java Java Objects (Retired) Delivering the MVP Wrapping up

Wesley Seago
Wesley Seago
10,424 Points
Posted by Wesley Seago
Wesley Seago
10,424 Points

Delivering the MVP. Need an extra set of eyes.

Hi!

This code challenge won't complete. It runs fine in Android Studio, but the challenge will not complete. Please take a look and see if I am missing anything.

Thanks

Wesley Seago
Wesley Seago
10,424 Points
Wesley Seago
Wesley Seago
10,424 Points

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;
  } 

}
Wesley Seago
Wesley Seago
10,424 Points
Wesley Seago
Wesley Seago
10,424 Points

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;
  }

}
Wesley Seago
Wesley Seago
10,424 Points
Wesley Seago
Wesley Seago
10,424 Points

Forum.java

public class Forum {
  private String mTopic;

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

  public String getTopic() {
      return mTopic;
  }

  public void addPost(ForumPost post) {
      System.out.printf("New post from %s %s about %s.\n",
                         post.getAuthor().getFirstName(),
                         post.getAuthor().getLastName(),
                         post.getTitle());
  }
}
Wesley Seago
Wesley Seago
10,424 Points
Wesley Seago
Wesley Seago
10,424 Points

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("Craig", "Dennis");
    // Add the author, title and description
     ForumPost post = new ForumPost(author, "Test", "test");
     forum.addPost(post);
  }
}
Wesley Seago
Wesley Seago
10,424 Points
Wesley Seago
Wesley Seago
10,424 Points

Here is the output from Android Studio:

01-17 23:33:50.256 24935-24935/com.android.wesleyseago.myapplication2 I/System.out﹕ New post from Wes Seago about Test.

1 Answer

boog690
boog690
8,987 Points
boog690
boog690
8,987 Points

I assume things fail in the fourth part? Everything looks good except for your Example.java code. It'll compile but it won't answer the question asked by Team Treehouse. The first and last name will be passed via the args[] array in main (args[0] and args[1], respectively).