Listing 1: An Imaginary Order Class
public class Order {
private boolean underPromotion;
private String deliveryType;
private int totalAmount;
private int orderNumber;
private Product prod;
public Order(Product prod, String deliveryType, boolean underPromotion) {
this.prod = prod;
this.deliveryType = deliveryType;
this.underPromotion = underPromotion;
this.totalAmount = prod.getPrice();
this.orderNumber = 100; // we will actually assign a number here.
}
public int getPromotionalPrice() {
if (underPromotion) {
totalAmount = totalAmount - 6;
}
return totalAmount;
}
public boolean checkIfProductExists() {
return prod != null;
}
public String getOrderInfo() {
return prod.toString() + orderNumber + totalAmount + deliveryType + underPromotion;
}
public int getOrderPrice() {
if (deliveryType.equalsIgnoreCase("special")) {
totalAmount = totalAmount + 6;
}
return totalAmount;
}
}
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