import java.util.Scanner;
public class Demo15{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
double tPrice = 245; //T恤價(jià)格
double qxPrice = 570; //球鞋價(jià)格
double qpPrice = 150; //球拍價(jià)格
double sumPrice = 0; //單品總價(jià)格
double price = 0; //最終總價(jià)格
String tName = "T恤";
String qxName = "網(wǎng)球鞋";
String qpName = "網(wǎng)球拍";
String name = "";
System.out.println("我行我素購物管理系統(tǒng) > 購物結(jié)算\n\n");
System.out.println("******************************************");
System.out.println("請(qǐng)選擇購買的商品編號(hào)：");
System.out.println("1斗塘、T恤\t\t"+tPrice+"\n2、網(wǎng)球鞋\t"+qxPrice+"\n3献丑、網(wǎng)球拍\t"+qpPrice);
System.out.println("******************************************");
System.out.println("");
boolean b = true;
do{
System.out.println("");
System.out.print("請(qǐng)輸入商品編號(hào)：");
int id = sc.nextInt();
System.out.print("\n請(qǐng)輸入購買數(shù)量：");
int count = sc.nextInt();
//判斷用戶此次購買的是哪種商品
if(id==1){
sumPrice = tPrice * count;
name = tName;
}else if(id==2){
sumPrice = qxPrice * count;
name = qxName;
}else{
sumPrice = qpPrice * count;
name = qpName;
}
price = price + sumPrice;//統(tǒng)計(jì)最終金額
System.out.println(name+"\t￥"+(sumPrice/count)+"\t￥"+sumPrice);
System.out.print("是否繼續(xù)(y/n):");
String flag = sc.next();
switch(flag){
case "n":
b = false;
}
}while(b);
System.out.println("折扣0.8");
System.out.println("金額總計(jì)："+price * 0.8);
System.out.print("實(shí)際交費(fèi)：");
double realPrice = sc.nextDouble();
if(realPrice>=(price*0.8)){
System.out.println("找錢："+(realPrice-price * 0.8));
}else{
System.out.println("您付的金額不足彤恶！請(qǐng)重新交費(fèi)边坤。");
}
}
}
