public static voidmain(String[] args) {

String[] names= new String[4]; //订餐人姓名

String[] dishMegs = new String[4]; //保存菜品名及份数

int[] times =new int[4]; //送餐时间

String[] addresses = new String[4]; //保存送餐地址

int[] states = new int[4]; //保存订单状态: 0表示已预订，1表示已完成

double[] sumPrices = new double[4]; //保存订单的总金额//初识化订单信息

names[0]="张青";

dishMegs[0]="红烧带鱼 2份";

times[0]=12;

addresses[0]="天成路207号";

states[0]=1;

sumPrices[0]=76.0;

names[1]="张青";

dishMegs[1]="鱼香肉丝 2份";

times[1]=18;

addresses[1]="天成路207号";

states[1]=0;

sumPrices[1]=45.0;

String[] dishNames={"红烧带鱼","鱼香肉丝","时冷鲜疏"}; //菜单

double[] prices ={38.0,20.0,10.0}; //价格

int[] praiseNums =new int[]{58,45,50}; //点赞数

Scanner input= new Scanner(System.in);int num=-1; //用户输入0返回菜单，否则退出

boolean isExit=false; //标志用户是否退出系统；true 为退出系统

System.out.println("\t欢迎使用“吃货联盟订餐系统”");

auter:do{

System.out.println("**************************************");

System.out.println("\t 1、我要订餐");

System.out.println("\t 2、查看餐袋");

System.out.println("\t 3、签收订单");

System.out.println("\t 4、删除订单");

System.out.println("\t 5、我要点餐");

System.out.println("\t 6、退出系统");

System.out.println("**************************************");

System.out.println("请选择:");int choose =input.nextInt();switch(choose){case 1:

System.out.println("***我要订餐***");

System.out.println("请输入订餐人姓名:");

String name=input.next();

boolean isAdd= false; //记录是否可以订餐

for (int i = 0; i < names.length; i++) {if(names[i]==null){

isAdd= true;

System.out.println("序号\t菜品名称\t菜品单价\t点赞数");for (int j = 0; j < dishNames.length; j++) {

System.out.println((j+1)+"\t"+dishNames[j]+"\t"+prices[j]+"\t"+praiseNums[j]);

}

System.out.println("请选择您要点的菜品编号:");int chooseDich =input.nextInt();

System.out.println("请选择您需要的份数:");int number =input.nextInt();//得到订餐信息

String dishMeg=dishNames[chooseDich-1]+" "+number+"份";//订餐总金额

double sumPrice = prices[chooseDich-1] *number;//订餐满50元，免送餐费5元

double deliCharge =(sumPrice>=50)? 0:5;

System.out.println("请输入送餐时间(送餐时间是10点至20点间整点送餐):");int time =input.nextInt();while(time<10 && time>20){

System.out.println("您输入有误,请重新输入10~20间的整数!");

time=input.nextInt();

}

System.out.println("请输入送餐地址:");

String address=input.next();//无需添加状态，默认为0

System.out.println("订餐成功!");

System.out.println("您定的是:"+dishMeg);

System.out.println("送餐时间:"+time);

System.out.println("餐费:"+sumPrice+"元,送餐费"+deliCharge+"元,总计:"+(sumPrice+deliCharge)+"元");

System.out.println();//添加数据

names[i]=name;

dishMegs[i]=dishMeg;

times[i]=time;

addresses[i]=address;

sumPrices[i]=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订餐信息\t\t送餐时间\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)?"已预订":"已完成";

System.out.println((i+1)+"\t"+names[i]+"\t"+dishMegs[i]+"\t"+times[i]+"\t"+addresses[i]+"\t"+sumPrices[i]+"\t"+state);

}

}break;case 3:

System.out.println("***签收订单***");

System.out.println("签收订单的序号:");int delId=input.nextInt();

boolean isSignFind= false;for (int i = 0; i < names.length; i++) {if(names[i]!=null && i ==(delId-1) && states[i]==0){

states[i]=1; //状态改为 1

System.out.println("订单签收成功");

isSignFind=true;break;

}else if(names[i]!=null && i ==(delId-1) && states[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***");

System.out.println("输入要删除的订单编号:");int dinId=input.nextInt();

boolean isDelFind=false;for (int i = 0; i < names.length; i++) {if(names[i]!=null && states[i]==1 && i==(dinId-1)){

isDelFind=true;for (int j = i; 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];

}//数组最后一位清空

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 && i==(dinId-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菜品名称\t菜品单价\t点赞数");for (int j = 0; j < dishNames.length; j++) {

System.out.println((j+1)+"\t"+dishNames[j]+"\t"+prices[j]+"\t"+praiseNums[j]);

}

System.out.println("请输入您要点赞的菜品序号:");int priaiseNum =input.nextInt();

praiseNums[priaiseNum-1]+=1;

System.out.println("点赞成功!");break;case 6:

System.out.println("退出系统!");breakauter;default:

isExit=true;break;

}if(!isExit){

System.out.println("输入0返回");

num=input.nextInt();

}

}while(num==0);

System.out.println("欢迎使用订餐系统");

}