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Java Java Objects Delivering the MVP Forum

shu Chan
shu Chan
2,951 Points
Posted by shu Chan
shu Chan
2,951 Points

initialize the forum post with the user created above and a title and description of your choice

Hello! I've already cleared this challenge but I was confused on one part.

I don't think the exercise intended me to put author as the user because I was supposed to create it above in this code on Main.java but I can't figure out how to do that.

How do I create a user from this code? Above in where?

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; 
}


  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 = lastName;
    // TODO: set and add the private fields
  }

  // 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);
    }

    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(, "Faster than the speed of love", "How to write a crappy book");
    forum.addPost(post);

// */
  }

}

1 Answer

Huzaifa Sajjad Malik
PLUS
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points
Huzaifa Sajjad Malik
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points 
User user=new User("Shu","Chan");
/*Here you have created a User object called user and in the constructor 
you have passed the two string arguments which the constructor is 
expecting. Moreover you could create the User objects where ever you 
require in the code in future course you would do so.*/

Hope it helps if you have any other queries you could aske me would love to help you out.