java实现订餐系统的方法-创新互联

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小编给大家分享一下java实现订餐系统的方法，希望大家阅读完这篇文章后大所收获，下面让我们一起去探讨吧！

import java.util.Scanner;

public class versionAlliance {
 public static void main(String[] args) {
 Scanner in = new Scanner(System.in);
 String[] names=new String[5];//客户姓名
 String[] dishes= {"红烧带鱼","鱼香肉丝","时令鲜蔬"};//菜品名称
 double[] prices= {38.0,20.0,10.0};//菜品价格
 String[] disMegs=new String[5];
 int[] praiseNums=new int[3];//点赞数
 int times[]=new int[5];//送餐时间
 String addresses[]=new String[5];//送餐地址
 int[] states=new int[5];//订单状态
 double[] sumPrices=new double[5];//订单金额   
 int chose;
 int chose1 = 1;
 do {
 System.out.println("欢迎使用“吃货联盟订餐系统”");
 System.out.println("*****************************");
 System.out.println("1.我要订餐");
 System.out.println("2.查看餐代");
 System.out.println("3.签收订单");
 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("*****************************");
 System.out.print("请选择：");
 chose = in.nextInt();
 switch(chose) {
  case 1:
  System.out.println("*****我要订餐*****");
  System.out.print("请输入订餐人姓名：");
  for (int i = 0; i < names.length; i++) {
   if (names[i]==null) {
   names[i]=in.next();
   break;
   }
  }
  System.out.println("序号\t菜名\t单价\t点赞数");
  System.out.println("1\t"+dishes[0]+"\t"+prices[0]+"\t"+praiseNums[0]);
  System.out.println("2\t"+dishes[1]+"\t"+prices[1]+"\t"+praiseNums[1]);
  System.out.println("3\t"+dishes[2]+"\t"+prices[2]+"\t"+praiseNums[2]);
  System.out.println("请选择您要点的菜品编号：");
  int No=in.nextInt();
  String disMeg=null;
  double price=0;
  double sumPrice=0;
  if(No==1) {
   disMeg=dishes[0];
   price=prices[0];
  }else if(No==2) {
   disMeg=dishes[1];
   price=prices[1];
  }else if(No==3) {
   disMeg=dishes[2];
   price=prices[2];
  }
  System.out.println("请选择您需要的份数：");
  int copies=in.nextInt();
  System.out.println("请输入送餐时间：");
  int time=in.nextInt();
  for (int i = 0; i < names.length; i++) {
   if (times[i]==0) {
   times[i]=time;
   break;
   }
  }
  System.out.println("请输入送餐地址：");
  for (int i = 0; i < names.length; i++) {
   if (addresses[i]==null) {
   addresses[i]=in.next();
   break;
   }
  }
  sumPrice=copies*price;
  for (int i = 0; i < names.length; i++) {
   if (sumPrices[i]==0) {
   sumPrices[i]=sumPrice;
   break;
   }
  }
  for (int i = 0; i < names.length; i++) {
   if(disMegs[i]==null) {
   disMegs[i]=disMeg+copies;
   break;
   }
  }
  for (int i = 0; i < names.length; i++) {
   if(states[i]==0) {
   states[i]=1;
   break;
   }
  } 
  System.out.println("订餐成功！");
  System.out.println("您订的是："+disMeg+" "+copies+"份");
  System.out.println("送餐时间："+time+"点");
  System.out.println("餐费："+sumPrice+"元");
  System.out.println("输入0返回，其他退出：");
  chose1=in.nextInt();
  break;
  case 2:
  System.out.println("***查看餐袋***");
  System.out.println("序号\t订餐人\t餐品信息\t\t送餐时间\t送餐地址\t总金额\t订单状态");
  for (int i = 0; i < names.length; i++) {
   
   if(names[i]!=null) {
   String state=(states[i]==1)?"已预订":"已完成"; 
   System.out.println((i+1)+"\t"+names[i]+"\t"+disMegs[i]+"份"+"\t"+times[i]
     +"点"+"\t"+addresses[i]+"\t"+sumPrices[i]+"\t"+state);
   }
  }
  System.out.println("输入0返回，其他退出：");
  chose1=in.nextInt();
  break;
  case 3:
  System.out.println("***签收订单***");
  System.out.println("请选择要签收的订单号：");
  int num=in.nextInt();
  if(states[num-1]==1) {
   states[num-1]=2;
   System.out.println("订单签收成功！");
  }else if(states[num-1]==2) {
   System.out.println("订单已签收！");
  }else {
   System.out.println("无此订单！");
  }
  System.out.println("输入0返回，其他退出：");
  chose1=in.nextInt();
  break;
  case 4:
  System.out.println("***删除订单***");
  System.out.println("请输入要删除的订单号:");
  int num1=in.nextInt();
  if(names[num1-1]!=null&&states[num1-1]==2) {
   for (int i=num1-1; i < names.length-1; i++) {
   names[i]=names[i+1];
   times[i]=times[i+1];
   states[i]=states[i+1];
   addresses[i]=addresses[i+1];
   sumPrices[i]=sumPrices[i+1];
   disMegs[i]=disMegs[i+1];
   }
   System.out.println("订单删除成功！");
  }else if(names[num1-1]!=null&&states[num1-1]==1) {
   System.out.println("订单未签收，不可删除！");
  }else if(names[num1-1]==null) {
   System.out.println("不存在此订单！");
  }
  System.out.println("输入0返回，其他退出：");
  chose1=in.nextInt();
  break;
  case 5:
  System.out.println("***我要点赞***");
  System.out.println("序号\t菜名\t单价");
  System.out.println(1+"\t"+dishes[0]+"\t"+prices[0]+"\t"+praiseNums[0]+"赞");
  System.out.println(2+"\t"+dishes[1]+"\t"+prices[1]+"\t"+praiseNums[1]+"赞");
  System.out.println(3+"\t"+dishes[2]+"\t"+prices[2]+"\t"+praiseNums[2]+"赞");
  System.out.println("请选择您要点赞的序号：");
  int num3=in.nextInt();
  switch(num3) {
   case 1:
   praiseNums[0]++;
   System.out.println("点赞成功！");
   break;
   case 2:
   praiseNums[1]++;
   System.out.println("点赞成功！");
   break;
   case 3:
   praiseNums[2]++;
   System.out.println("点赞成功！");
   break; 
  }
  System.out.println("输入0返回，其他退出：");
  chose1=in.nextInt();
  break;
  default:
  System.out.println("退出系统！");
  return;
 }
 }while(chose1==0);
 System.out.println("退出系统！");
 }
}