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Android Intents and Broadcast Receivers Broadcast Receivers Creating a Receiver in Code

Creating Broadcast Receivers

please do help me as i have tried this question several times but not passing the challenge

import android.os.Bundle;
import android.view.View;

public class TimeTravelActivity extends Activity {

  public String targetYear;

  private NetworkConnectionReceiver receiver = new NetworkConnectionReceiver();

  protected void onCreate(Bundle savedInstanceState) {

    Intent intent = getIntent();
    targetYear = intent.getStringExtra("EXTRA_YEAR");
    EnergySource source = (EnergySource)intent.getParcelableExtra("EXTRA_ENERGY");