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Java Java Objects (Retired) Delivering the MVP Wrapping up

Deano k
PLUS
Deano k
Courses Plus Student 5,872 Points

task 4, getting the error message "I expected to see the names I passed in through the args, but I do not. Hmm." why?

What is wrong with my code?

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

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

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  public String getDescription() {
    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;
  }

public String getFirstName() {
     //include validation, logic, logging or whatever you like here
    return this.mFirstName;
}

 public void setFirstName(String value) {
     //include more logic
     this.mFirstName = value;
}

public String getLastName() {
     //include validation, logic, logging or whatever you like here
    return this.mLastName;
}

 public void setLastName(String value) {
     //include more logic
     this.mLastName = value;
}
}
Forum.java
public class Forum {
  private String mTopic;

  public String getTopic() {
      return mTopic;
  }

  Forum(String topic) {
    mTopic = topic;
  }

  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("david","gray");
    // Add the author, title and description
    ForumPost post = new ForumPost(author,"happy to complete","java course");
    forum.addPost(post);
  }
}

2 Answers

in Example.java they want

User author = new User(args[0], args[1]);

I think they're trying to get you to recognize the String[] args in the main method can actually be used to hold arrays. In this example, the if statement at the top tells us there is a first and last name saved.