cartitem.java

电子商城：包括两个部分,一是前台销售程序

package com.publish.shop.order.javabeans;

import java.math.*;
import com.publish.shop.order.javabeans.ItemInfo;

public class CartItem {
  private ItemInfo item;
  private int quantity;
  private boolean inStock;
  private BigDecimal total;
  public CartItem(){
    quantity = 0;
  }
  public ItemInfo getItem() {
    return item;
  }
  public void setItem(ItemInfo item) {
    this.item = item;
  }
  public int getQuantity() {
    return quantity;
  }
  public void setQuantity(int quantity) {
    this.quantity = quantity;
  }
  public boolean getInStock() {
    return inStock;
  }
  public void setInStock(boolean inStock) {
    this.inStock = inStock;
  }
  public BigDecimal getTotal() {
    return total;
  }
  public void setTotal(BigDecimal total) {
    this.total = total;
  }
  private void calcTotal()
  {
    if (item != null && item.getListPrice()!=null)
    {
      total = item.getListPrice().multiply(new BigDecimal(quantity));
    }
    else
    {
      total = null;
    }
  }
  public void increaseQuantity()
  {
    quantity++;
    calcTotal();
  }
}