public class Shop
{
private String coffee="咖啡做早厅"
private String coke="可乐"
private String tea="茶"
private double coffeeprice=2.00
private double cokeprice=3.00
private double teaprice=5
private double price=0.0
public Shop()
{
}
public void getName(int i)
{
if(i==1)
{
System.out.println("你选择的是咖啡")
}
if(i==2)
{
System.out.println("你纯隐选择的是可乐")
}
if(i==3)
{
System.out.println("你选择的是茶")
}
}
public double getShopping(int i,double p)
{
if(i==1)
{
if(p<coffeeprice)
{
System.out.println("您的钱不够买此商品")
}
else
{
price=p-coffeeprice
}
}
if(i==2)
{
if(p<cokeprice)
{
System.out.println("您的钱不够买此商品")
}
else
{
price=p-cokeprice
}
}
if(i==3)
{
if(p<teaprice)
{
System.out.println("您的钱不够买此商品")
}
else
{
price=p-teaprice
}
}
return price
}
public static void main(String[] args)
{
Shop shop=new Shop()
try
{
System.out.println("请选择你睁缓想要的商品\n 1.咖啡 2.可乐 3.茶")
Scanner si=new Scanner(System.in)
int i=si.nextInt()
System.out.println(" ")
if(i>3||i<1)
{
System.out.println("没有此产品")
}
else
{
shop.getName(i)
System.out.println(" ")
System.out.print("请付账:")
Scanner sp=new Scanner(System.in)
double p=sp.nextDouble()
System.out.println(" ")
if(shop.getShopping(i,p)!=0.0)
{
System.out.println("找你的钱:"+shop.getShopping(i,p))
}
}
}
catch(Exception ex)
{
System.out.println("请正确输入!")
}
}
}
importjava.util.Scanner\x0d\x0a\x0d\x0apublicclassShop\x0d\x0a{\x0d\x0aprivateStringcoffee="咖啡"\x0d\x0aprivateStringcoke="可乐"\x0d\x0aprivateStringtea="茶"\x0d\x0aprivatedoublecoffeeprice=2.00\x0d\x0aprivatedoublecokeprice=3.00\x0d\x0aprivatedoubleteaprice=5\x0d\x0aprivatedoubleprice=0.0\x0d\x0apublicShop()\x0d\x0a{\x0d\x0a}\x0d\x0apublicvoidgetName(inti)\x0d\x0a{\x0d\x0aif(i==1)\x0d\x0a{\x0d\x0aSystem.out.println("你选择的是咖啡")\x0d\x0a}\x0d\x0a\x0d\x0aif(i==2)\x0d\x0a{\x0d\x0aSystem.out.println("你选择的是岩喊可乐")\x0d\x0a}\x0d\x0a\x0d\x0aif(i==3)\x0d\x0a{\x0d\x0aSystem.out.println("你选择的是茶")\x0d\x0a}\x0d\x0a}\x0d\x0apublicdoublegetShopping(inti,doublep)\x0d\x0a{\x0d\x0aif(i==1)\x0d\x0a{\x0d\x0aif(ppackage com.testimport java.util.Scanner
import com.sun.java_cup.internal.internal_error
public class Demo {
/**
* @param args
*/哪轮
public static void main(String[] args) {
Scanner s=new Scanner(System.in)
int c
int gum=0,cho=0,pop=0,jui=0
do{
Demo.play_bord()
c=s.nextInt()
if(c<0||c>6){
System.out.println("1-6 only ,input a new choice")
c=s.nextInt()
}
switch(c){
case 1:
System.out.println("here is your gum")
gum++
break
case 2:
System.out.println("here is your chocolate")
cho++
break
case 3:
System.out.println("here is your popcorn")
pop++
break
case 4:
System.out.println("here is your juice")
jui++
break
case 5:
System.out.println(gum+" gum are sold")
System.out.println(cho+" chocolate are sold")
System.out.println(pop+" popcorn are sold")
System.out.println(gum+" juice are sold"坦碧)
break
case 6:
System.out.println("system exit")
}
}while(c!=6)
}
public static void play_bord(){
System.out.println("****这是简易售货机,请按下数字选择李信信服务*****")
System.out.println("[1]:get gum")
System.out.println("[2]:get chocolate")
System.out.println("[3]:get popcorn")
System.out.println("[4]:get juice")
System.out.println("[5]:dispaly totalsold")
System.out.println("[6]:quit")
System.out.println("***************************")
}
}
刚好以前写了个 改完给你了
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