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 Retrieving and Viewing Messages Retrieving Messages

Javier Briones
seal-mask
.a{fill-rule:evenodd;}techdegree
Javier Briones
Front End Web Development Techdegree Student 29,674 Points
Posted by Javier Briones
.a{fill-rule:evenodd;}techdegree
Javier Briones
Front End Web Development Techdegree Student 29,674 Points

Retrieving Messages code challenge objective 1 of 3

Hello,

I'm having an error with my code and I'm not sure what is the problem. Here's my code:

import android.app.Activity; import android.os.Bundle; import com.parse.ParseQuery; import com.parse.ParseObject; import com.parse.FindCallback;

public class MainActivity extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    /* Add code below! */
  ParseQuery<ParseObject> query = new ParseQuery("DoctorWhoEpisodes");


}

}

And here's the error I'm receiving:

Note: ./MainActivity.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details.

Thanks in advance

1 Answer

Nick Edwards
PLUS
Nick Edwards
Courses Plus Student 15,766 Points
Nick Edwards
Nick Edwards
Courses Plus Student 15,766 Points

You need to declare the type of data being passed back through the query in the constructor - don't forget that ParseQuery is a generic class that needs to have a specified type. So in this case:

new ParseQuery<ParseObject>("DoctorWhoEpisodes");

Hope this helps!