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Java Java Objects Delivering the MVP Forum

Thandolwethu Bhebhe
Thandolwethu Bhebhe
1,417 Points

I cnt get ths to work, not sure i gt the question. I uncommented the code, tried to pass in the arguments but... errors

I cant work my head around this, been at it for a good part of yesterday to present. How do i get past it

Forum.java
public class Forum {
  private String topic;

  // TODO: add a constructor that accepts a topic and sets the private field 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

  public User(String firstName, String lastName) {
    // TODO: set and add the private fields

  }

  // TODO: add getters for firstName and 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 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();
    // TODO: initialize the forum post with the user created above and a title and description of your choice
    ForumPost post = new ForumPost();
    forum.addPost(post);

// */
  }

}

2 Answers

Louis Sankey
Louis Sankey
22,595 Points

Constructors are public and the same name as the class

    public class Forum {

    //private field
    private String topic;

      //CONSTRUCTOR for Forum looks like this. It sets the above private field.
        public Forum(String topic){
            this.topic = topic;
        }

    //the setter does not need to return anything because it only resets the private field so the value so it is void. 

    public void setTopic(String topic){
        this.topic = topic;
    }

    //getter returns the private field
    public String getTopic(){
        return this.topic:
    }

This is not exactly everything in the code challenge but I hope it helps. Let me know if you are still having problems and I will come back.

Thandolwethu Bhebhe
Thandolwethu Bhebhe
1,417 Points

Thanks for the typo spotting, really appreciate. Ive passed the challenge but then there are still a few things im uncertain about. You if you dont mind checking it out:

https://teamtreehouse.com/community/hi-guys-i-have-went-through-this-test-however-i-have-questions-on-a-few-things-that-dont-really-make-sense-to-me