JAVA学习日记12.27——订餐系统

package cn.kgc;import sun.security.x509.SubjectAlternativeNameExtension;import java.util.Scanner;/*** @Author $(USER)* @Date $(DATE)* @Description 吃货联盟订餐系统*/
public class chihuolianmeng {public static void main(String[] args) {Scanner sc=new Scanner(System.in);String[] dishes={"鸡丁","菜1","菜2","菜3","菜4"};double[] prices={23,52,48,54,85};int[] honor=new int[5];final double sendprice=6;String[][] orders=new String[1000][];System.out.println("*********欢迎使用吃货联盟订餐系统**********");int choice;do{System.out.println("********1.我要订餐********");System.out.println("********2.查看订单********");System.out.println("********3.确认订单********");System.out.println("********4.删除订单********");System.out.println("********5.我要点赞********");System.out.println("********6.退出系统********");System.out.println("请输入你的选择:");choice=sc.nextInt();switch(choice){case 1://订餐System.out.println("请输入您的姓名：");String name=sc.next();//展示菜单System.out.println("序号\t菜名\t价格\t点赞");for(int i=0;i<dishes.length;i++){System.out.println(i+1+"\t"+dishes[i]+"\t"+prices[i]+"\t"+honor[i]);}System.out.println("请输入您要点的菜品：");int num=sc.nextInt();System.out.println("请输入份数：");int fenshu=sc.nextInt();System.out.println("请输入送餐时间（8：00-20：00）：");double time=sc.nextDouble();System.out.println("请输入送餐地址：");String address=sc.next();double total=prices[num-1]*fenshu;total=total>60?total:total+sendprice;System.out.println(name+"顾客，恭喜您订餐成功，您点了"+dishes[num- 1]+fenshu+"份"+"总价为："+total+"\t"+time+"点送达，您的地址为"+address);for (int i = 0; i < orders.length; i++) {if(orders[i]==null){orders[i]=new String[]{dishes[num-1]+"\t" +fenshu+"\t"+total+"\t"+time+"点\t"+address,"已预定"};break;}}break;case 2://查看订单System.out.println("***查看订单***");System.out.println("序号\t菜名\t份数\t总价\t姓名\t时间\t地址\t状态\t");for(int i=0;i<orders.length;i++){if(orders[i]==null){break;}System.out.println(i+1+"\t"+orders[i][0]+"\t"+orders[i][1]);}break;case 3://确认订单System.out.println("请选择要确认的订单编号:");int ordersnum=sc.nextInt();if(orders[ordersnum-1]==null){System.out.println("订单不存在！");}else if(orders[ordersnum-1][1].equals("已完成")){System.out.println("订单已完成！请勿重复确认");}else{orders[ordersnum-1][1]="已完成";System.out.println("订单确认成功！");}break;case 4://删除订单System.out.println("***删除订单***");System.out.println("序号\t菜名\t\t份数\t总价\t姓名\t时间\t地址\t状态 \t");for(int i=0;i<orders.length;i++){if(orders[i]==null){break;}System.out.println(i+1+"\t"+orders[i][0]+"\t"+orders[i][1]);}System.out.print("请输入要删除的订单：");int delord=sc.nextInt();if(orders[delord-1]==null){System.out.println("订单不存在，删除失败！");}else if(orders[delord-1][1].equals("已预定")){System.out.println("订单未完成，不能删除！");}else{for(int i=delord-1;i<orders.length;i++){orders[i]=orders[i+1];if(orders[i+1]==null){break;}}System.out.println("删除成功！");}break;case 5://菜品点赞System.out.println("序号\t菜名\t价格\t点赞");for(int i=0;i<dishes.length;i++){System.out.println(i+1+"\t"+dishes[i]+"\t"+prices[i]+"\t"+honor[i]);}System.out.println("请输入点赞的菜品：");int honornum=sc.nextInt();honor[honornum-1]++;break;case 6:break;default:}}while(choice>0&&choice<6);System.out.println("欢迎下次光临");}
}