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Need help whit code challenge Set the title for the alert as "Hooray!", and set the message to "You did it!". Don't wor

import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.widget.EditText;

public class GuessNumberActivity extends Activity {

protected String mUserInput;
protected EditText mNumberField;

 * onCreate() and other code has been omitted for brevity!

public void makeGuess() {
    // Set mUserInput here! 
  mUserInput = mNumberField.getText().toString();

    // Check to see if the user's number is correct
  boolean isCorrect = GuessEngine.testGuess(mUserInput);
    if(isCorrect == true){
      AlertDialog.Builder builder = new AlertDialog.Builder(GuessNumberActivity.this);