android: Alert Dialog with two buttons

AlertDialog.Builder builder2=new AlertDialog.Builder(MyAlertdialogActivity.this);
  builder2.setMessage("Do you want to continue");
  builder2.setPositiveButton("Yes",new DialogInterface.OnClickListener() {

  @Override
   public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

  Toast.makeText(getApplicationContext(), "U Clicked OK", Toast.LENGTH_LONG).show();

  }

  });

  builder2.setNegativeButton("No", new DialogInterface.OnClickListener() {

@Override
  
  public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

  Toast.makeText(getApplicationContext(), "U Clicked Cancel ", Toast.LENGTH_LONG).show();

  }

  });

  builder2.show();