User class - adding constructor and getters.

Question

What am i doing wrong?

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) {
    mFirstName = firstName;
    mLastName = lastName;

  }
    public String getFirstName(String firstName){
      return firstName;        
    }

    public String getLastName(String lastName){
      return 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);
  }
}

Answer 1 · 2015-10-03T13:56:40Z

October 3, 2015 1:56pm

Hey Trina,

The problem lies in your User.java file.

What getters and setters do is their ability to grab the value and set the value of private variables. What your getters are doing at the moment is taking in a string and then spitting that same string back out. What we want to is for the getter to spit out the value of our private variable in the top. How do we do this? Simple:

public String getFirstName() {
      return mFirstName;        
    }

    public String getLastName() {
      return mLastName;      
    }

As you can see, getters never have paramters. You call them and they they will return the value of your m private variable.

If this helped, dont forget to mark as best answer so others with the same question can see

Happy coding and all the best,

Kevin

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trina joy

trina joy

User class - adding constructor and getters.

1 Answer

Kevin Faust

Kevin Faust