Forum excercise. Task 4 of 4. No idea :(

Question

I don't have any idea of how to complete task 4, any idea?

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;
  }

  public Forum(String topic) {
  this.topic = 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
  private String firstName;
  private String lastName;

  public User(String firstName, String lastName) {
    // TODO: set and add the private fields
    this.firstName = firstName;
      this.lastName = lastName;
  }

  // TODO: add getters for firstName and lastName
  public String getFirstName() {
  return firstName;
  }

  public String getLastName() {
  return 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 ForumPost(User author, String title, String description) {
  this.author = author;
    this.title = title;
    this.description = 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);

  }

}

Answer 1 · 2017-07-10T07:19:53Z

July 10, 2017 7:19am

Hey there, Pedro. On Main.java, what you're doing this task is adding parameters to the User author and the ForumPost lines.

     // TODO: pass in the first name and last name that are in the args parameter
    User author = new User(); 
/*Remember how in Hangman.java, when you changed the 
argument on the new Game() object to accept input 
from the command line to pick words besides "treehouse"?*/


    // TODO: initialize the forum post with the user created above and a title and description of your choice
    ForumPost post = new ForumPost(); 
//this one take three arguments- one for the User object, and two Strings.

Answer 2 · 2017-07-14T06:17:05Z

July 14, 2017 6:17am

No worries, same thing happened to me. I found this task surprisingly pesky.

    Forum forum = new Forum("Java");

    User author = new User(args[0], args[1]);   // You created an instance of User here...

    ForumPost post = new ForumPost(<User object>, <String>, <String>); 
                 // ^^^And you plug the instance into <User object>

    forum.addPost(post);

Welcome to the Treehouse Community

Looking to learn something new?

Pedro Araya

Pedro Araya

Forum excercise. Task 4 of 4. No idea :(

2 Answers

John Paige

John Paige

Pedro Araya

Pedro Araya

John Paige

John Paige

John Paige

John Paige