1  void MainWindow::on_checkButton_clicked()
2  {
3    int totalPrice = 0;
4    //Pizza Size
5    if(ui->small->isChecked())
6        totalPrice += (ui->smallPrice->text().toInt());
7    else if (ui->medium->isChecked())
8        totalPrice += (ui->mediumPrice->text().toInt());
9    else if (ui->large->isChecked())
10       totalPrice += (ui->largePrice->text().toInt());
11   //Other orders
12   if(ui->bread->isChecked())
13       totalPrice += (ui->breadPrice->text().toInt());
14   if(ui->water->isChecked())
15       totalPrice += (ui->waterPrice->text().toInt());
16   if(ui->soda->isChecked())
17       totalPrice += (ui->sodaPrice->text().toInt());
18    ui->result->setText(QString::number(totalPrice));
19 }