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Java Java Objects (Retired) Delivering the MVP Wrapping up

Joshua Curtis
Joshua Curtis
1,832 Points
Posted by Joshua Curtis
Joshua Curtis
1,832 Points

What are you supposed to get in the getters?

This is for the final challenge in the last Java Objects stage.

ForumPost.java 
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
}
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;
  }


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

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

  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();
    // Add the author, title and description
    // ForumPost post = new ForumPost();
    // forum.addPost(post);
  }
}

1 Answer

anil rahman
anil rahman
7,786 Points
anil rahman
anil rahman
7,786 Points

For task 2, it says also add getters in 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;
  }

//here are the two getters which just return the member fields
  public String getFirstName() {
    return mFirstName;

  }
  public String getLastName() {
    return mLastName;

  }
}

This is task 3, ForumPost.Java

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

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

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

//Add description getter so return decription member field using method
  public String getDescription() {
    return mDescription;
  }

  // TODO: We need to expose the description
}

Uncomment stuff in forum.java

public class Forum {
  private String mTopic;

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

  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());

  }
}

Last part is in 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");
    }

//This is what you uncomment and follow the comments below to fill in the parameters which i have done already.

     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,"java","fixed it");
     forum.addPost(post);
  }
}