1、查询商品价格import java.util.Scanner;public class Myshopping public static void main(String a) System.out.println(“Myshopping管理系统购物结算“);System.out.println(“请选择购买的商品编号:“);System.out.println(“1.T恤tt2.网球鞋tt3.网球拍“);Scanner input = new Scanner(System.in);String choose=“y“;double t=0;while (choose.equals(“y“) S
2、ystem.out.println(“请输入商品编号:“);int num = input.nextInt();System.out.println(“请输入购买数量:“);int amount = input.nextInt();switch (num) case 1:t=245.0*amount;System.out.println(“T恤t245.0tt数量“+amount+“tt合计“+t);break;case 2:t=570.0*amount;System.out.println(“网球鞋t570.0tt数量“+amount+“tt合计“+t);break;case 3:t=438
3、.0*amount;System.out.println(“网球拍t438.0tt数量“+amount+“tt合计“+t);break;System.out.println(“是否继续(y/n):“);choose= input.next(); System.out.println(“折扣:0.8“);double pay=t*0.8;System.out.println(“应付金额:“+pay);System.out.println(“实付金额;“);double sf = input.nextDouble();System.out.println(“找钱:“+(sf-pay);System
4、.out.println(“程序结束!“);升级购物结算 import java.util.Scanner;public class DEMO3 public static void main(String a) int num = 0;Scanner input = new Scanner(System.in);System.out.println(“欢迎使用Myshopping购物系统“);System.out.println(“*“);System.out.println(“1.客户信息管理“);System.out.println(“2.购物结算“);System.out.printl
5、n(“3.真情回馈“);System.out.println(“4.注销“);System.out.println(“*“);System.out.println(“请选择输入数字:“);num = input.nextInt();while (num = 5|num1) System.out.println(“输入错误,请重新输入!“);num = input.nextInt();switch (num) case 1:System.out.println(“1.客户信息管理“);break;case 2:System.out.println(“2.购物结算“);break;case 3:S
6、ystem.out.println(“3.真情回馈“);break;case 4:System.out.println(“4.注销“);break;package ksxx_lianxi;public class bank int summoney=10000;public int draw(int dmoney)summoney=summoney-dmoney;return summoney;public int save(int smoney)summoney=summoney+smoney;return summoney;陈中 2015/4/3 8:28:41package ksxx_l
7、ianxi;import java.util.Scanner;public class Textbank public static void main(String args)boolean x=true;Scanner input=new Scanner(System.in);bank xx=new bank();doSystem.out.println(“0.存款 1.取款 2.退出“);System.out.print(“请选择需要办理的业务：“);int m=input.nextInt();switch(m)case 0:System.out.print(“请输入存款的数目：“);i
8、nt smoney=input.nextInt();int summoney=xx.save(smoney);System.out.println(“存款成功“);System.out.println();System.out.println(“*当前余额为：“+summoney+“*“);System.out.println();break;case 1:System.out.print(“请输入取款的数目：“);int dmoney=input.nextInt();if(dmoney=xx.summoney)int summoney1=xx.draw(dmoney);System.out.println(“取款成功“);System.out.println();System.out.println(“*当前余额为：“+summoney1+“*“);System.out.println();else System.out.println(“*当前不足余额为*“);System.out.println();break;case 2:System.out.println(“谢谢使用“);x=false;break;while(x);
