public String displayPizzaSize(int pizzaSize){
        if (pizzaSize == 0){
            pizzaDisplayedSize = "Eight-inch"; 
        } else if (pizzaSize == 1){
            pizzaDisplayedSize = "Twelve-inch";
        } else if (pizzaSize == 2){
            pizzaDisplayedSize = "Eighteen-inch";
        } else if (pizzaSize == 3){
            pizzaDisplayedSize = "Twenty-four inch"; 
        }
        
        return pizzaDisplayedSize; 
    }