Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialArun Shivaramakrishna
4,771 PointsError in ArrayList implementation
Unable to locate the error. Could someone check the code and please let me know!
package com.example;
import java.io.Serializable;
import java.util.Date;
import java.util.Arrays;
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 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 List<String> getExternalLinks() {
return getResult("http");
}
public List<String> getResult(String http){
List<String> newLinks = new ArrayList<String>();
for (String checkLink : getWords()) {
if (checkLink.startsWith(http)) {
newLink.add(checkLink);
}
}
return newLinks;
}
}
3 Answers
Jon Kussmann
Courses Plus Student 7,254 Points if (checkLink.startsWith(http)) {
newLink.add(checkLink);
}
Should be (you were missing an 's'):
if (checkLink.startsWith(http)) {
newLinks.add(checkLink);
}
Arun Shivaramakrishna
4,771 PointsI made that change. Guess still there are a few more corrections needed.
Jon Kussmann
Courses Plus Student 7,254 PointsYou are missing a couple of import statements. Let me know if you can't figure out which ones.
Arun Shivaramakrishna
4,771 PointsOh you were Right! Thanks a lot for the help!