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Android Build a Blog Reader Android App Exploring the Master-Detail Template Adding More Test Data

Posted by Daniel Hughes
Daniel Hughes
Courses Plus Student 681 Points

Error in build blog reader code challenge

In the "Build a Blog Reader" --> "Exploring the Master Detail" --> "Adding more test data" final coding challenge, there seems to be an error. I'm inputting the code correctly (Im pretty positive), however get a compiler error

my code is

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class DummyContent {

    public static List<DummyItem> ITEMS = new ArrayList<DummyItem>();
    public static Map<String, DummyItem> ITEM_MAP = new HashMap<String, DummyItem>();

    static {
        // Add 3 sample items.
        addItem(new DummyItem("1", "The Avengers", "Whedon"));
        addItem(new DummyItem("2", "The Hobbit", "Jackson"));
        addItem(new DummyItem("3", "Ball of Fire", "Hawks"));
    }

    private static void addItem(DummyItem item) {
        ITEMS.add(item);
        ITEM_MAP.put(item.id, item);
    }

    /**
     * A dummy item representing a piece of content.
     */
    public static class DummyItem {
        public String id;
        public String content;
        public String director;

        public DummyItem(String id, String content) {
            this.id = id;
            this.content = content;
            this.director = director;
        }
    }
}

and the compiler error is

JavaTester.java:29: cannot find symbol
symbol  : constructor DummyItem(java.lang.String,java.lang.String,java.lang.String)
location: class DummyContent.DummyItem
      DummyContent.DummyItem item = new DummyContent.DummyItem("A", "Movie", "Director");
                                    ^
./DummyContent.java:13: cannot find symbol
symbol  : constructor DummyItem(java.lang.String,java.lang.String,java.lang.String)
location: class DummyContent.DummyItem
        addItem(new DummyItem("1", "The Avengers", "Whedon"));
                ^
./DummyContent.java:14: cannot find symbol
symbol  : constructor DummyItem(java.lang.String,java.lang.String,java.lang.String)
location: class DummyContent.DummyItem
        addItem(new DummyItem("2", "The Hobbit", "Jackson"));
                ^
./DummyContent.java:15: cannot find symbol
symbol  : constructor DummyItem(java.lang.String,java.lang.String,java.lang.String)
location: class DummyContent.DummyItem
        addItem(new DummyItem("3", "Ball of Fire", "Hawks"));
                ^
4 errors

2 Answers

Martin Toth
Martin Toth
2,931 Points
Martin Toth
Martin Toth
2,931 Points

I think you forgot to pass the third parameter (String director) to the DummyItem constructor ;)

public DummyItem(String id, String content, String director) {
            this.id = id;
            this.content = content;
            this.director = director;
}
Daniel Hughes
PLUS
Daniel Hughes
Courses Plus Student 681 Points
Daniel Hughes
Daniel Hughes
Courses Plus Student 681 Points

hahaha, gdi, I was so positive I had it right too!

thanks very much!! :)

Martin Toth
Martin Toth
2,931 Points

You're welcome ;)