cartproduct.java

java学习的必要的资料,servlet的说明很好

package com.estore.struts.entity;
/*
 * 购物车中的商品类型
 */
public class CartProduct {
	
	private Product product=new Product();
	private int num ;
	private double total;

	public CartProduct(Product product, int num) {
		this.product = product;
		this.num = num;
	}
	
	public int getNum() {
		return num;
	}
	public void setNum(int num) {
		this.num = num;
	}
	public Product getProduct() {
		return product;
	}
	public void setProduct(Product product) {
		this.product = product;
	}
	
	public double getTotal() {
		return product.getPrice()*num;
	}
	
	@Override
	public boolean equals(Object obj) {
		return this.product.hashCode()==obj.hashCode();
	}
	@Override
	public int hashCode() {
		return this.product.hashCode();
	}
}