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Java Java Data Structures - Retired Exploring the Java Collection Framework ArrayLists

Bummer

It say forgot to add getMentionedList method

com/example/BlogPost.java
package com.example;

import java.io.Serializable;
import java.util.Date;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.List;

public class BlogPost implements Comparable<BlogPost>, Serializable {
  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 int compareTo(BlogPost other) {
    if (equals(other)) {
      return 0;
    }
    return mCreationDate.compareTo(other.mCreationDate);
  }

  public String[] getWords() {
    return mBody.split("\\s+");
  }
  public List<String> getExternalLinks(String http) {
   List<String> docBody = new ArrayList <String>();
    for(String words : getWords()) {
      if(words.startsWith(http)) {
        docBody.add(words);
      }
    }
    return docBody;
  }

  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;
  }
}

1 Answer

Chase Marchione
Chase Marchione
155,055 Points

Hi Nirbhay,

You're close!

  • We can remove that http parameter, since http isn't an argument that's being passed to the getExternalLinks method.

  • We want to put "http" in double quotes when we use it as an argument to the startsWith method, because it is a string literal rather than a variable.

  public List<String> getExternalLinks() {
   List<String> docBody = new ArrayList <String>();
    for(String words : getWords()) {
      if(words.startsWith("http")) {
        docBody.add(words);
      }
    }
    return docBody;
  }

Hope this helps!

hmmm. Yes thnks