public class ShoppingCartClient {
public static void main(String[] args) {
ItemElement[] items = new ItemElement[]{new Book(20,"1234"),new Book(100, "5678"),
new Fruit(10, 2, "Banana"), new Fruit(5, 5, "Apple")};
int total = calculatePrice(items);
System.out.println("Total Cost = "+total);
}
private static int calculatePrice(ItemElement[] items) {
ShoppingCartVisitor visitor = new ShoppingCartVisitorImpl();
int sum=0;
for(ItemElement item : items){
sum = sum + item.accept(visitor);
}
return sum;
}
}