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 trialColby Wise
3,165 PointsError: Expected 3 outcomes but returned 0 -- why doesnt this implementation w/ helper method not work?
Why doesn't this implementation with helper method {getWordsPrefixedWith} work -- (so one can easily change what should be returned) ?
package com.example;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
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.toLowerCase().split("\\s+");
}
public List<String> getExternalLinks(){
return getWordsPrefixedWith("http");
}
private List<String> getWordsPrefixedWith(String prefix){
List<String> results = new ArrayList<String>();
for(String word : getWords()){
if(word.startsWith("prefix")){ //should this be in quotes?? Just call String prefix direct?
results.add(word);
}
}
return results;
}
}
1 Answer
Marcus Karlsson
1,291 PointsYou can't call your String prefix like that, since it's like initiating a new string. You need to take the " away and it will work just fine!