吃货联盟订餐系统
package p190; import java.util.Scanner; public class P190 { public static void main(String[] args) { Scanner in = new Scanner(System.in); //初始化存储数组 String names[] = new String[4]; //姓名 String dishMegs[] = new String[4]; //菜名 int dishNum[] = new int[4]; //菜品编号 int times[] = new int[4]; //送餐时间 String addresses[] = new String[4]; //地址 int states[] = new int[4]; //订单状态 double sumPrices[] = new double[4]; //总价 String dishNames[] = new String[] {"红烧带鱼", "鱼香肉丝", "时令鲜蔬"}; double prices[] = new double[] {38.0, 20.0, 10.0}; int praiseNums[] = new int[3]; //点赞数 //判断用户输入的是否为0，退出系统 int num = -1; //判断是否结束程序 boolean isExit = false; //初始化两条订单信息 //第1条 names[0] = "张晴"; dishMegs[0] = "红烧带鱼"; dishNum[0] = 2; times[0] = 12; addresses[0] = "天成路207号"; states[0] = 1; sumPrices[0] = 76.0; //第2条 names[1] = "张晴"; dishMegs[1] = "鱼香肉丝"; dishNum[1] = 2; times[1] = 18; addresses[1] = "天成路207号"; states[1] = 0; sumPrices[1] = 45.0; //界面初始化 System.out.println("欢迎使用“吃货联盟订餐系统”"); //界面需要0返回主界面 //所以需要先显示界面再判断 //所以用do-while循环，无论如何执行一次循环体 while(true){ System.out.println("**************************************************"); System.out.println("1.我要订餐"); System.out.println("2.查看餐袋"); 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.println("请选择："); boolean legal = true; num = in.nextInt(); //主界面输入选择 switch(num) { case 1: System.out.println("***我要订餐***"); boolean isAdd = false; for(int j = 0; j < names.length; j++) { if(names[j] == null) { isAdd = true; System.out.println("请输入订餐人姓名:"); String name = in.next(); System.out.println("序号" + "\t" + "菜名" + "\t" + "单价" + "\t" + "点赞数"); for(int i = 0; i < dishNames.length; i++) { String price = prices[i]+"元"; String priaiseNum = (praiseNums[i]) > 0 ? praiseNums[i] + "赞" : "0"; System.out.println(i + 1 + "\t" + dishNames[i] + "\t" + price + "\t" + priaiseNum); } System.out.println("请选择您要点的菜品编号："); int chooseDish = in.nextInt(); System.out.println("请选择您需要的份数："); int chooseNumber = in.nextInt(); String dishMeg = dishNames[chooseDish -1] + " " + chooseNumber + "份"; double sumPrice = prices[chooseDish - 1] * chooseNumber; //订餐费满50，减5元配送费 double deliCharge = (sumPrice >= 50) ? 0 : 5; System.out.println(" 请输入送餐时间（送餐时间是10点到20点整点送餐）："); int time = in.nextInt(); while(time < 10 || time > 20) { System.out.println(" 您输入的时间有误，请输入10~20间的整数！"); time = in.nextInt(); } System.out.println("请输入送餐地址："); String address = in.next(); //默认是0 System.out.println("订餐成功！"); System.out.println("您订的是：" + dishMeg); System.out.println("送餐时间：" + time + "点"); System.out.println("餐费："+ sumPrice + "元，送餐费" + deliCharge + "元， 总计：" + (sumPrice + deliCharge) + "元。"); //添加数据 names[j] = name; dishMegs[j] = dishMeg; times[j] = time; addresses[j] = address; sumPrices[j] = sumPrice+ deliCharge; break; } } if(!isAdd) { System.out.println("对不起，您的餐袋已满！"); } 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送餐日期\t送餐地址\t\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] == 0) ? "已预定" : "已完成"; String date = times[i] + "日"; String sumPrice = sumPrices[i] + "元"; System.out.println((i + 1) + "\t" + names[i] + "\t" + dishMegs[i] + "\t" + date + "\t" + addresses[i] + "\t" + sumPrice + "\t" + state); } } break; case 3: System.out.println("***签收订单***"); boolean isSignFind = false; System.out.println("请选择要签收的订单序号："); int signOrderId = in.nextInt(); for(int i = 0; i < names.length; i++) { if(names[i] != null && states[i] == 0 && signOrderId == i+1) { states[i] = 1; System.out.println("定单签收成功！"); isSignFind = true; }else if(names[i] != null && states[i] == 1 && signOrderId == i+1) { System.out.println(" 您选择的订单已完成签收，不能再次签收！"); isSignFind = true; } } if(! isSignFind) { System.out.println("您选择的订单不存在！"); } break; case 4: System.out.println("***删除订单***"); boolean isDelFind = false; System.out.println("请输入要删除的订单序号："); int delId = in.nextInt(); for(int i = 0; i < names.length; i++) { if(names[i] != null && states[i] == 1 && delId == i + 1) { isDelFind = true; for(int j = delId-1; j < names.length - 1; j++) { names[j] = names[j+1]; dishMegs[j] = dishMegs[j+1]; times[j] = times[j+1]; addresses[j] = addresses[j+1]; states[j] = states[j+1]; sumPrices[j] = sumPrices[j+1]; } int endIndex = names.length - 1; names[endIndex] = null; dishMegs[endIndex] = null; times[endIndex] = 0; addresses[endIndex] = null; states[endIndex] = 0; sumPrices[endIndex] = 0; System.out.println("删除订单成功！"); break; }else if(names[i] != null && states[i] == 0 && delId == i + 1) { System.out.println(" 您选择的订单未签收，不能删除！"); isDelFind = true; break; } } if(! isDelFind) { System.out.println("您要删除的订单不存在！"); } break; case 5: System.out.println("***我要点赞***"); System.out.println("序号\t" + "菜名\t" + "单价\t" + "点赞数\t"); for(int i = 0; i < dishNames.length; i++) { String price = prices[i] + "元"; String priaiseNum = (praiseNums[i] >= 0)? praiseNums[i]+ "赞": ""; System.out.println((i+1)+ "\t" + dishNames[i]+ "\t"+ price+ "\t"+ priaiseNum); } System.out.println("请选择您要点赞的菜品序号："); int priaiseNum = in.nextInt(); if(priaiseNum > 3 || priaiseNum < 0) { System.out.println("输入的序号有误！"); break; } praiseNums[priaiseNum-1]++; System.out.println("点赞成功！"); break; case 6: isExit = true; break; default: System.out.println("输入有误，请重新输入!"); legal = false; break; } if(!legal) { continue; } if(!isExit) { System.out.println("输入0返回："); num = in.nextInt(); }else { break; } } in.close(); } }
