Struggle with Challenge Task 2 for Interface

Question

In Task 2, I know how to cast the object to the BlogPost by writing like "BlogPost other = (BlogPost) obj" and write "if(equals(other)) {return 0;}" but how to write the return statement in this task is a concern for me. Could anyone help me with that? Also, I hope everyone can point out the mistake I made in Task 2, here is the code: public int compareTo(Object obj){ BlogPost other = (BlogPost) obj; if(equals(other)){ return 0;} return other.compareTo(obj);

}

com/example/BlogPost.java

package com.example;

import java.util.Date;

public class BlogPost implements Comparable{
  private String mAuthor;
  private String mTitle;
  private String mBody;
  private String mCategory;
  private Date mCreationDate;

  public BlogPost(String author, String title, String body, String category, Date creationDate) {
    mAuthor = author;
    mTitle = title;
    mBody = body;
    mCategory = category;
    mCreationDate = creationDate;
  }

  public String[] getWords() {
    return mBody.split("\\s+");
  }

  public String getAuthor() {
    return mAuthor;
  }

  public String getTitle() {
    return mTitle;
  }

  public String getBody() {
    return mBody;
  }

  public String getCategory() {
    return mCategory;
  }

  public Date getCreationDate() {
    return mCreationDate;
  }

  public int compareTo(Object obj){

    BlogPost myBlogPost = (BlogPost) obj;
      if(equals(myBlogPost)){

      return 0;
    }
     return 0;
  }
}

Answer 1 · 2017-05-26T04:55:17Z

May 26, 2017 4:55am

hi Madeline Yao , you have to return always 1 , so u have to change the second return statement to return 1;

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Madeline Yao

Madeline Yao

Struggle with Challenge Task 2 for Interface

1 Answer

Fahad Mutair

Fahad Mutair