package net;
import java.util.Vector;
public class Cart {
private Vector goodies = new Vector();
public void addProduct(Product p) {
if (p == null) return;
goodies.addElement(p);
}
public void removeProduct(Product p) {
goodies.removeElement(p);
}
public Product[] getProducts() {
Product[] pa = new Product[goodies.size()];
goodies.copyInto(pa);
return pa;
}
public String toString() {
Product p[] = getProducts();
String s = "cart:\n";
for (int i = 0; i < p.length; i++)
s = s + p[i].toString() + '\n';
s = s + "total:" + getTotal();
return s;
}
public float getTotal() {
Product p[] = getProducts();
float t = 0;
for (int i = 0; i < p.length; i++)
t = t + p[i].getPrice();
return t;
}
public static void main(String args[]) {
Product p = new Product(
"Image Processing in Java", 25f, 12);
Product p2 = new Product(
"Java for Programmers", 35f, 11);
Cart c = initializeCart(p, p2);
System.out.println(c);
c.removeProduct(p);
System.out.println(c);
}
private static Cart initializeCart(Product p,
Product p2) {
Cart c = new Cart();
c.addProduct(p);
c.addProduct(p);
c.addProduct(p2);
return c;
}
}