Java实现简单订餐系统

import java.util.scanner;

import java.util.*;

public class orderingmsg {

public static void main(string[] args) {

// 数据主体：一组订单信息

string[] names = new string[ 4 ]; // 订餐人名称

string[] dishmegs = new string[ 4 ]; // 所选菜品

int [] times = new int [ 4 ]; // 送餐时间

string[] addresses = new string[ 4 ]; // 送餐地址

int [] states = new int [ 4 ]; // 订单状态： 0：已预定 1：已完成

double [] sumprices = new double [ 4 ]; // 总金额

//初始化2个订单信息

names[ 0 ] = "张晴" ;

dishmegs[ 0 ] = "红烧带鱼 2份" ;

times[ 0 ] = 12 ;

addresses[ 0 ] = "天成路207号" ;

sumprices[ 0 ] = 76.0 ;

states[ 0 ] = 1 ;

names[ 1 ] = "张晴" ;

dishmegs[ 1 ] = "鱼香肉丝 2份" ;

times[ 1 ] = 18 ;

addresses[ 1 ] = "天成路207号" ;

sumprices[ 1 ] = 20.0 ;

// 供选择的菜品信息

string[] dishnames = { "红烧带鱼" , "鱼香肉丝" , "时令鲜蔬" }; // 菜品名称

double [] prices = new double [] { 38.0 , 20.0 , 10.0 }; // 菜品单价

int [] praisenums = new int [ 3 ];

scanner input = new scanner(system.in);

int num = - 1 ; // 用户输入0返回主菜单，否则退出系统

boolean isexit = false ; // 标志用户是否退出系统： true:退出系统

system.out.println( "\n欢迎使用[吃货联盟订餐系统]" );

// 循环：显示菜单，根据用户选择的数字执行相应功能

do {

// 显示菜单

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.print( "请选择：" );

int choose = input.nextint(); // 记录用户选择的功能编号

boolean isadd = false ; //记录是否可以订餐

boolean issignfind = false ; //找到要签收的订单

boolean isdelfind = false ; //找到要删除的订单

// 根据用户选择的功能编号执行相应功能

switch (choose) {

case 1 :

// 我要订餐

system.out.println( "***我要订餐***" );

system.out.print( "请输入订餐人姓名：" );

string name=input.next();

isadd= true ;

int j = 0 ;

for (; j < names.length; j++) {

                 //todo

if (names[j]== null ){

names[j]=name;

break ;

}

else {

isadd= true ;

}

           }

if (!isadd){

system.out.println( "对不起，您的餐袋已满！" );

}

else {

system.out.println( "序号" + "\t" + "菜品名" + "\t" + "价格" );

for ( int i= 0 ;i<dishnames.length;i++){

system.out.print(i+ 1 + "\t" +dishnames[i]+ "\t" +prices[i]+ "\n" );

}

system.out.print( "请输入菜品编号：" );

int dishnum=input.nextint();

system.out.print( "请输入菜品数量：" );

int dishcnt=input.nextint();

string dishmeg=dishnames[dishnum- 1 ]+dishcnt+ "份" ;

dishmegs[j]=dishmeg;

system.out.print( "请输入收货地址：" );

string addr=input.next();

addresses[j]=addr;

system.out.print( "请输入收货时间：" );

int time=input.nextint();

times[j]=time;

double sumprice=prices[dishnum- 1 ]*dishcnt;

double delicharge=(sumprice> 50 )? 0 : 5 ;

system.out.println( "餐费：" +sumprice+ "元，送餐费：" +delicharge+ "元，总计：" +(sumprice+delicharge)+ "元。" );

sumprices[j]=sumprice+delicharge;

}

break ;

case 2 :

// 查看餐袋

system.out.println( "***查看餐袋***" );

system.out.println( "序号\t订餐人\t餐品信息\t\t送餐日期\t送餐地址\t\t总金额\t订单状态" );

  //todo

for ( int i= 0 ;names[i]!= null ;i++) {

string sta=(states[i]== 1 )? "已完成" : "已预定" ;

system.out.print((i+ 1 )+ "\t" +names[i]+ "\t" +dishmegs[i]+ "\t" +times[i]+ "\t" +addresses[i]+ "\t" +sumprices[i]+ "\t" +sta+ "\n" );

}

break ;

case 3 :

// 签收定单

system.out.println( "***签收定单***" );

  //todo

system.out.println( "序号\t订餐人\t餐品信息\t\t送餐日期\t送餐地址\t\t总金额\t订单状态" );

for ( int i= 0 ;names[i]!= null ;i++) {

string sta=(states[i]== 1 )? "已完成" : "已预定" ;

system.out.print((i+ 1 )+ "\t" +names[i]+ "\t" +dishmegs[i]+ "\t" +times[i]+ "\t" +addresses[i]+ "\t" +sumprices[i]+ "\t" +sta+ "\n" );

}

system.out.print( "请选择要签收的订单序号：" );

int n=input.nextint();

states[n- 1 ]= 1 ;

system.out.println( "序号\t订餐人\t餐品信息\t\t送餐日期\t送餐地址\t\t总金额\t订单状态" );

for ( int i= 0 ;names[i]!= null ;i++) {

string sta=(states[i]== 1 )? "已完成" : "已预定" ;

system.out.print((i+ 1 )+ "\t" +names[i]+ "\t" +dishmegs[i]+ "\t" +times[i]+ "\t" +addresses[i]+ "\t" +sumprices[i]+ "\t" +sta+ "\n" );

}

break ;

case 4 :

// 删除订单

system.out.println( "***删除订单***" );

system.out.println( "序号\t订餐人\t餐品信息\t\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< 4 ;i++) {

string sta=(states[i]== 1 )? "已完成" : "已预定" ;

system.out.print((i+ 1 )+ "\t" +names[i]+ "\t" +dishmegs[i]+ "\t" +times[i]+ "\t" +addresses[i]+ "\t" +sumprices[i]+ "\t" +sta+ "\n" );

}

system.out.print( "请输入要删除的订单序号:" );

  //todo

int m=input.nextint();

for ( int k=m; k< 4 ;k++)

{

names[k- 1 ]=names[k];

dishmegs[k- 1 ]=dishmegs[k];

times[k- 1 ]=times[k];

addresses[k- 1 ]=addresses[k];

sumprices[k- 1 ]=sumprices[k];

states[k- 1 ]=states[k];

}

system.out.println( "序号\t订餐人\t餐品信息\t\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< 4 ;i++) {

string sta=(states[i]== 1 )? "已完成" : "已预定" ;

system.out.print((i+ 1 )+ "\t" +names[i]+ "\t" +dishmegs[i]+ "\t" +times[i]+ "\t" +addresses[i]+ "\t" +sumprices[i]+ "\t" +sta+ "\n" );

}

break ;

case 5 :

// 我要点赞

system.out.println( "***我要点赞***" );

// 显示菜品信息

system.out.println( "序号" + "\t" + "菜名" + "\t" + "单价" );

for ( int i= 0 ;i<dishnames.length;i++){

system.out.print(i+ 1 + "\t" +dishnames[i]+ "\t" +prices[i]+ "\t" +praisenums[i]+ "赞" + "\n" );

}

  //todo

system.out.print( "请输入点赞序号：" );

int number=input.nextint();

praisenums[number- 1 ]=praisenums[number- 1 ]+ 1 ;

system.out.println( "序号" + "\t" + "菜名" + "\t" + "单价" );

for ( int i= 0 ;i<dishnames.length;i++){

system.out.print(i+ 1 + "\t" +dishnames[i]+ "\t" +prices[i]+ "\t" +praisenums[i]+ "赞" + "\n" );

}

break ;

case 6 :

// 退出系统

isexit = true ;

break ;

default :

//退出系统

isexit = true ;

break ;

}

if (!isexit) {

system.out.print( "输入0返回：" );

num = input.nextint();

} else {

break ;

}

} while (num == 0 );

system.out.println( "谢谢使用，欢迎下次光临！" );

}

}