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 trial

Android Build a Self-Destructing Message Android App Sending Messages Creating the Message

Posted by Sohale Vu
Sohale Vu
18,322 Points

Creating the Message Code Challenge

I'm trying to get the 1st part of this challenge to work. I have declared the new ParseObject as

ParseObject Event = new ParseObject();

below where it asks to place the code. It just tells me that I have compiler error.

8 Answers

John W
John W
21,558 Points

The question asks you to define a ParseObject object with the class name parameter "Event", not an object instance named "Event.

Also, the ParseObject constructor requires a String parameter as the class name parameter. Hence you should define it something like this:

ParseObject someNameForTheInstance = new ParseObject( "Event" );
Paul Stevens
Paul Stevens
4,125 Points
Paul Stevens
Paul Stevens
4,125 Points

Hello,

eventName is a string, not a variable and has to have quotation marks around it :

mEvent.put("eventName", "Birthday party");

That should sort it out.

james white
james white
78,399 Points
james white
james white
78,399 Points

You are right, Marc-Oliver, when you say: "This one seems tricky, indeed."

Personally I'm not seeing where "mEvent" is defined anywhere?!

The challenge says:

Challenge Task 2 of 3

Set the name of the event as "Birthday party". Use "eventName" as the key.

So I decided to go with (because it passed):

import android.app.Activity;
import com.parse.ParseObject;
import java.util.Date;
import java.util.GregorianCalendar;

public class MainActivity extends Activity {

    // Some code omitted!

    public void addNewEvent() {
        // param 1 = year, param 2 = month, param 3 = day
        Date date = new GregorianCalendar(2014, 0, 1).getTime(); 

        // Add code here!
        ParseObject event = new ParseObject("Event");
        event.put("eventName", "Birthday party");
        event.put("eventDate",date);
   }
}
Sohale Vu
Sohale Vu
18,322 Points
Sohale Vu
Sohale Vu
18,322 Points

Thank you very much John that helped out a lot. I do have a question on the second part of the challenge. I have put down

            <p>i
mport android.app.Activity;
import com.parse.ParseObject;
import java.util.Date;
import java.util.GregorianCalendar;

public class MainActivity extends Activity {

    // Some code omitted!

    public void addNewEvent() {
        // param 1 = year, param 2 = month, param 3 = day
        Date date = new GregorianCalendar(2014, 0, 1).getTime(); 

        // Add code here!
      ParseObject mEvent = new ParseObject( "Event" );
      mEvent.put(eventName, "Birthday party");
   }
}
</p>
            ``` 

but did doesn't seem to be working.
Marc-Oliver Gern
Marc-Oliver Gern
8,747 Points
Marc-Oliver Gern
Marc-Oliver Gern
8,747 Points

This one seems tricky, indeed. I am stuck with task 3 as well.

Ajay Maheshwari
PLUS
Ajay Maheshwari
Courses Plus Student 6,423 Points
Ajay Maheshwari
Ajay Maheshwari
Courses Plus Student 6,423 Points

Put the event name in double quotes "eventname"

Ajay Maheshwari
PLUS
Ajay Maheshwari
Courses Plus Student 6,423 Points
Ajay Maheshwari
Ajay Maheshwari
Courses Plus Student 6,423 Points

Marc-Oliver Gern please try this 

           import android.app.Activity;
           import com.parse.ParseObject;
           import java.util.Date;
           import java.util.GregorianCalendar;
           public class MainActivity extends Activity {
             // Some code omitted!
             public void addNewEvent() {
        // param 1 = year, param 2 = month, param 3 = day
        Date date = new GregorianCalendar(2014, 0, 1).getTime(); 
      //date.put("eventDate",(2014,0,1));
         ParseObject mEvent = new ParseObject( "Event" );
          mEvent.put("eventName", "Birthday party");
      mEvent.put("eventDate",date);
        // Add code here!
        }
     }
MUZ141063 Erick Chapupa
MUZ141063 Erick Chapupa
4,477 Points
MUZ141063 Erick Chapupa
MUZ141063 Erick Chapupa
4,477 Points

how did you guys come up with that code,i need ton understasnd thanx