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Java Java Objects Delivering the MVP Forum

corredius yarbrough
corredius yarbrough
3,167 Points

Please help me, I don't know what is the problem!!

I'm sure i have done this correctly but i keep getting a message basically saying i didn't pass firstName and lastName into the args parameter correctly.

Forum.java
public class Forum {
  private String topic;

  public Forum (String topic){
   this.topic = topic; 
  }
  // TODO: add a constructor that accepts a topic and sets the private field topic

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

  }
  public String getFirstName() {
    return firstName;
  }
  public String getLastName() {
    return lastName;
  }
  // 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 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);
    }

    Forum forum = new Forum("Java");
   // TODO: pass in the first name and last name that are in the args parameter
    User author = new User (args[0],args[1]);
    // TODO: initialize the forum post with the user created above and a title and description of your choice
    ForumPost post = new ForumPost(author, "I likee to pee pee", " i poop in my pants");
    forum.addPost(post);

  }

}
michaelcodes
michaelcodes
5,604 Points

Hello,

pluboj already said the correct solution below. but in the future If you include the error you get when compiling it will make it easier for people to help you and identify the problem :)

1 Answer

Hi,

In your constructor for class User, you are setting both firstName and lastName to firstName

 public User(String firstName, String lastName) {
    this.firstName = firstName;
    this.lastName = firstName;