Java Objects, Delivering the MVP, Stage 4, Wrapping Up, Challenge Task 3 of 4

Question

Challenge Task 3 of 4

Alright so now let's focus on ForumPost. It's going to need a constructor that takes a User author a String title and a String description. Also please add the getter for mDescription.

Here's all it has for ForumPost.java at the start of the challenge:

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

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  // TODO: We need to expose the description

}


//So I figured this would pass the challenge,
//but it does not:

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

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  //Added:
  public ForumPost(User author, String title, String description){
  }

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


}

Do I need to do something else inside the ForumPost constructor?

What that might be...?

Answer 1 · 2014-12-17T00:06:01Z

December 17, 2014 12:06am

This is so stupid and annoying!

The challenge didn't say that I needed to set anything inside the constructor,

but just out of sheer frustration I tried adding:

     mAuthor = author;
     mTitle = title;
     mDescription =  description;

//To make the whole thing:

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){
  //Shouldn't have to do this, but..  
    mAuthor = author;
     mTitle = title;
     mDescription =  description;
  }

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

}

.and lo and behold I got lucky and it passed!

This challenge is way to long and hard,

but on to 4 of 4.

This forum post helped me through Challenge 4: https://teamtreehouse.com/forum/stage-4-wrapping-up-challenge-task-4-of-4

However be aware when the challenge says: "Finally, uncomment the addPost method in Forum.java. Then for the last task, uncomment the main method in Example.java"

..that is DOES NOT mean uncomment everything!

If you remove ALL the double slashes for these lines in Example.java it's going to cause issues:

    // Forum forum = new Forum("Java");
    // Take the first two elements passed args
    // User author = new User();
    // Add the author, title and description
    // ForumPost post = new ForumPost();
    // forum.addPost(post);

Overall this challenge left me exhausted and defeated.

With the completion of Java Objects, my Java points jumped from 275 to 710..I guess that's something.

        ```html
        <br>
        ```

I wish the Java Objects course would have had a little more of a Deep Dive on harnessing the power of classes in Java to do interesting and powerful things.

I was hoping to explore a bit of OOP (object oriented programming).

Doesn't java use anything like: Encapsulation, Inheritance, Abstraction, Polymorphism

Also..has no one at Treehouse heard about Java's Swing and AWT graphical/GUI oriented widget toolkits (to say nothing of Java2D or LWJGL).

I took the CS106 online Stanford course (which teaches java).

It has a jar (Java archive) for Karel the robot that is very user friendly way for people to "ease in" to learning java.

Explanatory pdf: http://web.stanford.edu/class/cs106a/book/karel-the-robot-learns-java.pdf

Setup instructions: http://arnaudbertrand.com/playing-with-stanfords-karel-the-robot-on-a-standard-eclipse/

Maybe Treehouse can do something similar with Mike the Frog.

Anyway...I guess I'll have to wait patiently for Java Objects 2 (or some other non-Android-specific Java courses) to come out.

Welcome to the Treehouse Community

Looking to learn something new?

james white

james white

Java Objects, Delivering the MVP, Stage 4, Wrapping Up, Challenge Task 3 of 4

1 Answer

james white

james white

Craig Dennis

Craig Dennis