Android pass extra data to next Activity

RootClassActivity :

public class RootClassActivity extends Activity {
   public void goToNextPagePress(View view) {
      Intent intent = new Intent();
      intent.setClass(RootClassActivity.this, NodeClassActivity.class);
      intent.putExtra("type", 0); 
      Bundle bundle = new Bundle(); 
      bundle.putInt("value", 1); 
      intent.putExtras(bundle); 
      startActivity(intent);
   }
}

NodeClassActivity :

public class NodeClassActivity extends Activity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      Intent intent = this.getIntent(); 
      int type = intent.getIntExtra("type", 0); 
      Bundle bundle = intent.getExtras(); 
      int value = bundle.getInt("value");
   }

   public void backBtnPress(View view) {
      NodeClassActivity.this.finish();
   }
}