import android.app.Activity;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.view.View;
import android.widget.Toast;
import androidx.annotation.Nullable;
public class MainActivity extends Activity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Toast.makeText(this, "hello", Toast.LENGTH_SHORT).show();
}
}
