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Java Java Data Structures Organizing Data Comparable

Joshua Garcia
Joshua Garcia
8,334 Points

Compile error using @Override

I really don't understand why I'am getting an error with my @Override

package com.example;

import java.util.Date;

public class BlogPost {
  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 int compareTo(Object obj) {
    return 1;

  public String getBody() {
    return mBody;

  public String getCategory() {
    return mCategory;

  public Date getCreationDate() {
    return mCreationDate;

3 Answers

Yanuar Prakoso
Yanuar Prakoso
15,196 Points

Hi Joshua

The main problem is in your current code is: Your code has not implements Comparable yet. You need to state it after the class declaration to be able to use compareTo methods which derived from an interface called Comparable. Your class definition should look like this:

public class BlogPost implements Comparable{

I hope this can help a little

Raffael Dettling
Raffael Dettling
32,998 Points

You forgot to implement Comparable to the class like it is in the video.