/** * Load the list of available drinks */ private function createDrinks() { //Three Different flavor soda Soda::addFlavor('Coke'); Soda::addFlavor('Dr-Pepper'); Soda::addFlavor('Sprite'); //Three kind of milk Milk::addMilkType('Skim-Milk'); Milk::addMilkType('Whole-Milk'); Milk::addMilkType('2%-Milk'); }