查询商品价格.doc

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) System.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=438.0*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.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.println(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:System.out.println(3.真情回馈);break;case 4:System.out.println(4.注销);break;packageksxx_lianxi;publicclassbankintsummoney=10000;publicintdraw(intdmoney)summoney=summoney-dmoney;returnsummoney;publicintsave(intsmoney)summoney=summoney+smoney;returnsummoney;陈中2015/4/38:28:41packageksxx_lianxi;importjava.util.Scanner;publicclassTextbankpublicstaticvoidmain(Stringargs)booleanx=true;Scannerinput=newScanner(System.in);bankxx=newbank();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：);intm=input.nextInt();switch(m)case0:System.out.print(请输入存款的数目：);intsmoney=input.nextInt();intsummoney=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;case1:System.out.print(请输入取款的数目：);intdmoney=input.nextInt();if(dmoney=xx.summoney) intsummoney1=xx.draw(dmoney);System.out.println(取款成功);System.out.println();System.out.println(*当前余额为：+summoney1+*);System.out.p