本文实例为大家分享了java实现kfc点餐系统的具体代码，供大家参考，具体内容如下
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package kfc点餐系统;
//food 类
public class kfcfood {
private string fname ;
private int fnumb=1;
private float fprice;
public kfcfood() {
super();
}
public kfcfood(string fname, int fnumb, float fprice) {
super();
this.fname = fname;
this.fnumb = fnumb;
this.fprice = fprice;
}
public string getfname() {
return fname;
}
public void setfname(string fname) {
this.fname = fname;
}
public int getfnumb() {
return fnumb;
}
public void setfnumb(int fnumb) {
this.fnumb = fnumb;
}
public float getfprice() {
return fprice*fnumb;
}
public void setfprice(float fprice) {
this.fprice = fprice;
}
@override
public string tostring() {
return fname + " 价格 [" + fprice + "]";
}
}
package kfc点餐系统;
/*
* 1.正常餐品结算和找零。
2.基本套餐结算和找零。
3.使用优惠劵购买餐品结算和找零。
4.可在一定时间段参与店内活动（自行设计或参考官网信息）。
5.模拟打印小票的功能（写到文件中）。
* */
/*@author:kxd
* @date:2018.10.25
*
* 本人写这个小程序，第一创建kfcfood类属性有foodname foodprice foodnumb 和一些必要函数 这个类负责封装食物属性
* demo1 是主程序 核心 是hashmap 集合，hashmap<kfcfood , string > 做购物车 添加食物 和遍历打印小票
* 用字符输出流 很简洁的写法写入文本
* bufferedwriter bw = new bufferedwriter(new outputstreamwriter(new fileoutputstream("out.txt",true)));//字符缓冲输出流
*
* */
import java.io.bufferedwriter;
import java.io.filenotfoundexception;
import java.io.fileoutputstream;
import java.io.ioexception;
import java.io.outputstreamwriter;
import java.util.date;
import java.util.hashmap;
import java.util.scanner;
import java.util.set;
public class demo1 {
public static void main(string[] args) throws ioexception {
kfcfood k1=new kfcfood("全家桶",1,(float)(79.9));
kfcfood k2=new kfcfood("奥尔良鸡腿堡",1,(float)(19.9));
kfcfood k3=new kfcfood("热辣鸡腿堡",1,(float)(18.9));
kfcfood k4=new kfcfood("帕尼尼早餐套餐",1,(float)(29.9));
kfcfood k5=new kfcfood("可乐",1,(float)(9.9));
kfcfood k6=new kfcfood("鸡米花",1,(float)(9.9));
kfcfood k7=new kfcfood("薯条",1,(float)(8.8));
kfcfood k8=new kfcfood("热辣鸡翅",1,(float)(11.9));
kfcfood k9=new kfcfood("冰淇淋",1,(float)(9.9));
hashmap<kfcfood , string > hm= new hashmap<kfcfood , string >();
system.out.println("**********************************");
system.out.println("*********欢迎光临肯德基餐厅*************");
system.out.println(" 菜单 ");
system.out.println("1:"+k1.tostring());
system.out.println("2:"+k2.tostring());
system.out.println("3:"+k3.tostring());
system.out.println("4:"+k4.tostring());
system.out.println("5:"+k5.tostring());
system.out.println("6:"+k6.tostring());
system.out.println("7:"+k7.tostring());
system.out.println("8:"+k8.tostring());
system.out.println("9:"+k9.tostring());
boolean z=true ; int count=1;//计数器
float total=0;
while(z) {
system.out.println("请点餐 ：输入编号");
scanner sc = new scanner (system.in );
int i = sc.nextint();
switch (i) {
case 1:
system.out.println(count+k1.getfname());
system.out.println("请输入数量：");
scanner sc1= new scanner (system.in );
int n = sc1.nextint();
k1.setfnumb(n);//输入数量
total=total+k1.getfprice();//计算入总价
hm.put(k1,"数量："+string.valueof( k1.getfnumb()) );//添加进树
break;
case 2:
system.out.println(count+k2.getfname());
system.out.println("请输入数量：");
scanner sc2= new scanner (system.in );
int n2 = sc2.nextint();
k2.setfnumb(n2);
total=total+k2.getfprice();//计算入总价
hm.put(k2,"数量："+string.valueof( k2.getfnumb()) );//添加进树
break;
case 3:
system.out.println(count+k3.getfname());
system.out.println("请输入数量：");
scanner sc3= new scanner (system.in );
int n3 = sc3.nextint();
k3.setfnumb(n3);
total=total+k3.getfprice();//计算入总价
hm.put(k3,"数量："+string.valueof( k3.getfnumb()) );//添加进树
break;
case 4:
system.out.println(count+k4.getfname());
system.out.println("请输入数量：");
scanner sc4= new scanner (system.in );
int n4 = sc4.nextint();
k4.setfnumb(n4);
total=total+k4.getfprice();//计算入总价
hm.put(k4,"数量："+string.valueof( k4.getfnumb()) );//添加进树
break;
case 5:
system.out.println(count+k5.getfname());
system.out.println("请输入数量：");
scanner sc5= new scanner (system.in );
int n5 = sc5.nextint();
k5.setfnumb(n5);
total=total+k5.getfprice();//计算入总价
hm.put(k5,"数量："+string.valueof( k5.getfnumb()) );//添加进树
break;
case 6:
system.out.println(count+k6.getfname());
system.out.println("请输入数量：");
scanner sc6= new scanner (system.in );
int n6 = sc6.nextint();
k6.setfnumb(n6);
total=total+k6.getfprice();//计算入总价
hm.put(k6,"数量："+string.valueof( k6.getfnumb()) );//添加进树
break;
case 7:
system.out.println(count+k7.getfname());
system.out.println("请输入数量：");
scanner sc7= new scanner (system.in );
int n7 = sc7.nextint();
k7.setfnumb(n7);
total=total+k7.getfprice();//计算入总价
hm.put(k7,"数量："+string.valueof( k7.getfnumb()) );//添加进树
break;
case 8:
system.out.println(count+k8.getfname());
system.out.println("请输入数量：");
scanner sc8= new scanner (system.in );
int n8 = sc8.nextint();
k8.setfnumb(n8);
total=total+k8.getfprice();//计算入总价
hm.put(k8,"数量："+string.valueof( k8.getfnumb()) );//添加进树
break;
case 9:
system.out.println(count+k9.getfname());
system.out.println("请输入数量：");
scanner sc9= new scanner (system.in );
int n9 = sc9.nextint();
k9.setfnumb(n9);
total=total+k9.getfprice();//计算入总价
hm.put(k9,"数量："+string.valueof( k9.getfnumb()) );//添加进树
break;
default:system.out.println("请输入正确的号码！");
break;
}
//遍历树
set<kfcfood> ks1 = hm.keyset();//遍历map
for(kfcfood s2:ks1) {
system.out.println("("+s2+","+hm.get(s2)+")");
}
system.out.println("1 继续点餐 2 重新点餐 3 结束点餐 ");
scanner sca= new scanner (system.in );
int n = sca.nextint();
switch(n) {
case 1:
count++;
break ;
case 2 :
system.out.println("重新点餐！");
hm.clear();
break;
case 3 :
system.out.println("总价"+total);
system.out.println("结束点餐");
z=false;
break;
default:system.out.println("请输入正确的号码！");
break;
}
}
system.out.println("****************************************");
system.out.println("*********欢迎光临肯德基餐厅*************");
system.out.println(" 您的菜单为！ ");
//遍历树
set<kfcfood> ks1 = hm.keyset();//遍历map
for(kfcfood s2:ks1) {
system.out.println(" "+s2+", "+hm.get(s2)+" ");
}
system.out.println("总价"+total);
system.out.println("订单时间: "+new date());
system.err.println(" 欢迎下次光临！");
system.out.println("**********************************");
bufferedwriter bw = new bufferedwriter(new outputstreamwriter(new fileoutputstream("out.txt")));//字符缓冲输出流
bw.write("****************************************");bw.newline();
bw.write("*********欢迎光临肯德基餐!*************");bw.newline();
bw.write(" 您的菜单为！ ");bw.newline();
set<kfcfood> ks2 = hm.keyset();//遍历map
for(kfcfood s2:ks2) {
// system.out.println(" "+s2+", "+hm.get(s2)+" ");
bw.write(s2+", "+hm.get(s2));bw.newline();
}
//system.out.println("总价"+total);
bw.write("订单时间: "+new date());bw.newline();
bw.write(" 欢迎下次光临！");bw.newline();
bw.write("**********************************");bw.newline();
bw.flush();
bw.close();
}
}
运行结果：
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