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 an Interactive Story App (Retired) Finishing the User Interface Using a Model in the Controller

Andreas Robichaux
Andreas Robichaux
2,426 Points

Task 3 -- get the passenger number and set to a string

I need help on this 3rd task in this challenge. I am supposed to use the method to get the passenger number and then convert it to a string to display in the textView.

LandingActivity.java
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class LandingActivity extends Activity {

    public Button mThrustButton;
    public TextView mTypeLabel;
    public EditText mPassengersField;
    public Spaceship mSpaceship;

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

        mThrustButton = (Button)findViewById(R.id.thrustButton);
        mTypeLabel = (TextView)findViewById(R.id.typeTextView);
        mPassengersField = (EditText)findViewById(R.id.passengersEditText);

        mSpaceship = new Spaceship("FIREFLY");

    mTypeLabel.setText(mSpaceship.getType());
    mPassengersField.setText(passengersEditText.valueOf.get());

    }
}
Spaceship.java
public class Spaceship {
    private String mType;
    private int mNumPassengers = 0;

    public String getType() {
      return mType;
    }

    public void setType(String type) {
      mType = type;
    }

    public int getNumPassengers() {
      return mNumPassengers;
    }

    public void setNumPassengers(int numPassengers) {
      mNumPassengers = numPassengers;
    }

    public Spaceship() {
      mType = "SHUTTLE";
    }

    public Spaceship(String type) {
      mType = type;
    }
}

2 Answers

Damien Watson
Damien Watson
27,419 Points

Hi Andreas, you do it pretty much like the line above but add a blank string to the number which converts to a string.

mPassengersField.setText(mSpaceship.getNumPassengers() + "");
Andreas Robichaux
Andreas Robichaux
2,426 Points

oh okay thank you very much!!! so by adding that blank string it knows to convert it??

Damien Watson
Damien Watson
27,419 Points

Yeh, I think he calls it 'mushing it together', adding an empty string concatenates the number and the string, making a string.