JAVA代码段

break; case 2: name = \网球鞋\ price = 570.0; break; case 3: name = \网球拍\ price = 320.0; break; } heji = heji + price * sl; System.out.println(name + \数量\合计￥\ System.out.print(\是否继续（y/n）\ answer = input.next(); } double zk = 0.8; System.out.println(\折扣：\ System.out.println(\应付金额:\ System.out.print(\付款金额：\ double shifu = input.nextDouble(); System.out.println(\实付金额：\ while(shifu-(heji* zk)<0){ System.out.println(\请付款正确的金额！\ System.out.print(\付款金额：\ shifu = input.nextDouble(); } double zhaoqian = shifu - heji*zk; System.out.println(\找钱：\ } }

代码段13

import java.util.Scanner; public class Test4 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println(\欢迎使用MyShopping管理系统\\n\ System.out.println(\客户信息管理\\n2.购物结算\\n3.真情回馈\\n4.注销\ System.out.print(\请选择，输入数字：\ boolean isRight = true; do { int bianhao = input.nextInt(); isRight = true; switch (bianhao) {

case 1: System.out.println(\执行客户信息管理\ break; case 2: System.out.println(\执行购物结算\ break;3 case 3: System.out.println(\执行真情回馈\ break; case 4: System.out.println(\执行注销\ break; default: System.out.println(\输入错误，请重新输入数字：\ isRight = false; } } while (!isRight); System.out.println(\程序结束\ } }

代码段14

public class Test1 { public static void main(String[] args) { int num = 0; int sum = 0; for (int i = 1; i <= 100; i++) { if (i % 2 != 0) { sum = sum + i; } } System.out.println(\以内的奇数之和：\ } }

代码段15

import java.util.Scanner; public class Test2 { public static void main(String[] args) { int young = 0; int age = 0; Scanner input = new Scanner(System.in); for (int i = 0; i < 10; i++) { System.out.println(\请输入第\位顾客的年龄：\

age = input.nextInt();//输入年龄 if (age > 0 && age <= 30) { young++; } } System.out.println(\岁以下的比例是：\ System.out.println(\岁以上的比例是：\ } }

代码段16

import java.util.Scanner; public class Test3 { public static void main(String[] args) { Scanner input = new Scanner(System.in); int vip; String birthday; int jf; System.out.println(\管理系统>客户信息管理>添加客户信息\\n\ for (int i = 1; i <= 3; i++) { System.out.print(\请输入会员号（4位整数）：\ vip = input.nextInt(); System.out.print(\请输入会员生日（月/日<用两位整数表示>）：\ birthday = input.next(); System.out.print(\请输入会员积分：\ jf = input.nextInt(); if (vip > 999 && vip < 10000) { //判断会员号是否为四位整数 System.out.println(\您录入的会员信息是：\ System.out.println(vip + \ continue;//跳出if结构继续循环 } else { System.out.println(\录入信息失败！\\n\ continue;//跳出if结构继续循环 } } System.out.println(\程序结束\ } }

代码段17

import java.util.Scanner; public class Test4 { public static void main(String[] args) {

Scanner input = new Scanner(System.in); String vip; int mima = 0; for (int i = 1; i <= 3; i++) { System.out.println(\请输入用户名：\ vip = input.next(); System.out.println(\请输入密码：\ mima = input.nextInt(); if (vip.equals(\ System.out.println(\欢迎登录MyShopping系统！\ break; } else { System.out.println(\输入错误！您还有\次机会！\ continue; } } } }

代码段18

import java.util.Scanner; public class Test1{ public static void main(String[] args) { System.out.println(\欢迎进入青鸟迷你游戏平台\\n\ System.out.println(\请选择您喜爱的游戏：\\n\ System.out.println(\ System.out.println(\斗地主\ System.out.println(\斗牛\ System.out.println(\泡泡龙\ System.out.println(\连连看\ System.out.println(\ System.out.println(\请选择，输入数字：\ Scanner input = new Scanner(System.in); int sz =input.nextInt(); switch(sz){ case 1: System.out.println(\您已进入斗地主房间！\ break; default: System.out.println(\输入错误\ } } }