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Java Java Objects (Retired) Delivering the MVP Wrapping up

Ben Morse
Ben Morse
6,068 Points
Posted by Ben Morse
Ben Morse
6,068 Points

Challenge task 3 of 4 error in my code?

Task 3: Alright so now let's focus on ForumPost. It's going to need a constructor that takes a User author a String title and a String description. Don't forget to initialize the member fields in the constructor. Also please add the getter for mDescription.

Here is my code:

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

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

   public ForumPost (String description) { 
    mDescription = description;
  }

  public User getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  public String getDescription() {
    return mDescription;
  }
  // TODO: We need to expose the description
}

here is my ERROR:

./ForumPost.java:13: error: constructor ForumPost(String) is already defined in class ForumPost
   public ForumPost (String description) { 
          ^
1 error

I'm confused....that shouldn't be a problem because i'm passing a different variable. Right?

Robert Richey
Robert Richey
Courses Plus Student 16,352 Points

Hi Ben,

I added markdown to help make the code more readable. If you're curious about how to add markdown like this on your own, checkout this thread on posting code to the forum . Also, there is a link at the bottom called Markdown Cheatsheet that gives a brief overview of how to add markdown to your posts.

Cheers!

Ben Morse
Ben Morse
6,068 Points
Ben Morse
Ben Morse
6,068 Points

thanks for the tip :)

2 Answers

qlpxjevhuv
qlpxjevhuv
10,503 Points
qlpxjevhuv
qlpxjevhuv
10,503 Points

The challenge is expecting you to create one constructor that has three parameters. 

public constructorName(param1, param2, param3) {
     m1 = param1;
     m2 = param2;
     m3 = param3;
}

Currently you have three constructors, each taking one parameter.

Ben Morse
Ben Morse
6,068 Points
Ben Morse
Ben Morse
6,068 Points

ah, i was doing to much then. Thanks!

Andrei Li
Andrei Li
34,475 Points
Andrei Li
Andrei Li
34,475 Points

author is an object, so it should be type of User. The correct answer is:

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;
  }
}