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Ibrahim Nura
Courses Plus Student 1,404 PointsConstructors
I dont know how to answer this question using constructors Using the question.... """The LandingActivity interacts with the Spaceship model object we created. Start by setting mSpaceship to a new Spaceship object in the onCreate() method. Use the custom constructor that takes a String parameter, and pass in "FIREFLY" as the parameter.""""
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);
Spaceship mSpaceship=new Spaceship();
mThrustButton = (Button)findViewById(R.id.thrustButton);
mTypeLabel = (TextView)findViewById(R.id.typeTextView);
mPassengersField = (EditText)findViewById(R.id.passengersEditText);
// Add your code here!
public LandingActivity(String x){
;
}
}
}
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;
}
}
1 Answer
lambda
12,556 Points // other code omitted...
public Spaceship mSpaceship;
// other code omitted...
Spaceship mSpaceship=new Spaceship(); // the problem is on this line.
// they already declared an mSpaceship above this line (public Spaceship ... ), why are you declaring it again?
As a side note, if you aren't comfortable with constructors, I recommend watching the Java videos because Android programming requires an advanced understanding of constructors and other Java topics.