超市管理 java

来源：互联网发布：win2008 dhcp数据迁移编辑：程序博客网时间：2024/06/11 09:45
package cn.jbit.market;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Scanner;public class Market {public Market(){init();}Goods [] goods=new Goods[1000];// 超市商品Person person=new  Person();Scanner input=new Scanner(System.in);private void init() {goods[0]=new  Goods();goods[0].name="火腿肠";goods[0].id=101;goods[0].dicount=100;goods[0].price=2.0;goods[0].count=1000;goods[1]=new  Goods();goods[1].name="优乐美";goods[1].id=102;goods[1].dicount=100;goods[1].price=4;goods[1].count=20;goods[2]=new  Goods();goods[2].name="老干妈";goods[2].id=103;goods[2].dicount=100;goods[2].price=8.0;goods[2].count=80;goods[3]=new  Goods();goods[3].name="薯片";goods[3].id=104;goods[3].dicount=100;goods[3].price=6.0;goods[3].count=900;goods[4]=new  Goods();goods[4].name="火腿肠";goods[4].id=105;goods[4].dicount=100;goods[4].price=2.0;goods[4].count=1000;goods[5]=new  Goods();goods[5].name="ddd";goods[5].id=106;goods[5].dicount=100;goods[5].price=2.0;goods[5].count=1000;goods[6]=new  Goods();goods[6].name="大米";goods[6].id=107;goods[6].dicount=100;goods[6].price=2.0;goods[6].count=1000;goods[7]=new  Goods();goods[7].name="77腿肠";goods[7].id=108;goods[7].dicount=100;goods[7].price=2.0;goods[7].count=1000;}public void showGoods(){p("商品编号\t商品名称\t 单价\t 折扣 \t 库存");for (Goods gd : goods) {if(gd!=null){p(gd.id+"\t"+gd.name+"\t"+gd.price+"\t"+gd.dicount/10+"\t"+gd.count);}}} public  void menu() {p("欢迎来到xx超市");while(true){showGoods();p("请选择要购买的商品");int id=input.nextInt();p("请输入要购买的数量");int num=input.nextInt();addShoppingCar(id,num);p("是否继续购买y/n");char c=input.next().charAt(0);if(c=='n'){settle();break;}}}// 添加购物车private void settle() {p("欢迎光临xx超市");SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");p("打印时间"+sdf.format(new Date()));p("******************");p("商品名称\t 单价\t  数量\t 折扣\t 小计");double sum=0;// 总金额int totalCount=0; for (Goods g : person.goods) {if(g!=null){double subtotal=g.count*g.price*g.dicount/100;// 计算小计sum+=subtotal;totalCount+=g.count;p(g.name+"\t"+g.price+"\t"+g.count+"\t"+g.dicount/10+"\t"+subtotal);}}p("*****************************");p("购物的总数量为"+totalCount);p("优惠后的总计为"+sum);p("请付款");double money=input.nextDouble();p("收款金额为"+money);p("找零"+(money-sum));int score=(int) (sum/3);// 三块钱一分person.score+=score;p("本次消费积分为"+score);p("总积分为"+person.score);}private void addShoppingCar(int id,int num) {for (Goods g : goods) {// 要找到我要购买是商品if(g!=null&&g.id==id){// 库存数量大于购买数量if(g.count>=num){for (int i = 0; i < person.goods.length; i++) {// 找到我购物车的空位if(person.goods[i]!=null&&person.goods[i].id==id){person.goods[i].count+=num;g.count-=num;p("购买成功");return ;}}for (int i = 0; i < person.goods.length; i++) {// 找到我购物车的空位if(person.goods[i]==null){person.goods[i]=new Goods();person.goods[i].id=g.id;person.goods[i].name=g.name;person.goods[i].price=g.price;person.goods[i].dicount=g.dicount;person.goods[i].count=num;g.count-=num;p("购买成功");return ;}}p("购物车满了");}else{p("库存不足");return;}}}p("没有找到该商品");}public void p(Object obj) {System.out.println(obj);}}
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