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

Posted by Paul Willis
Paul Willis
4,082 Points

Help with challenge

I can't figure out the reason why this code won't compile. When I preview it, it says I am missing a '}' but I can't figure out where.

package com.example;

import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.HashSet;

public class Blog {
  List<BlogPost> mPosts;

  public Blog(List<BlogPost> posts) {
    mPosts = posts;
  }

  public List<BlogPost> getPosts() {
    return mPosts;
  }

  public Set<String> getAllAuthors(){
    Set<String> authors = new TreeSet<String>();
    for (BlogPost post : getPosts()){
      authors.add(post.getAuthor());
    }
  }
}

1 Answer

Matt Adams
Matt Adams
4,856 Points
Matt Adams
Matt Adams
4,856 Points

Hi,

Its not that you have a missing '}', its that you're not returning any data in getAllAuthors(), before the '}' referenced in the error code (when I ran the code, the return statement needs to be before the closing bracket on line 24.)

Does this help?

  • Matt
Paul Willis
Paul Willis
4,082 Points

Yes, it did help! Thanks!