简单的控制台“”“超市管理系统”

简单的控制台练手代码，欢迎您提出宝贵的意见
简单的用了类和对象的里面的一些属性和方法，希望能对您的学习提供微不足道的帮助

1.是会员类

package cn.kgc.entity;

import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 会员类
 * 
 * @author xiaobubu 2019年2月23日下午4:59:53
 */
public class VIP implements Serializable {

	private long vipCard;// 会员卡号
	private String name;// 会员的名字
	private String password;// 会员的密码
	private int integral;// 会员积分
	private Date registerDate;// 开卡日期

	public long getVipCard() {
		return vipCard;
	}

	public void setVipCard(long vipCard) {
		this.vipCard = vipCard;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public int getIntegral() {
		return integral;
	}

	public void setIntegral(int integral) {
		this.integral = integral;
	}

	public Date getRegisterDate() {
		return registerDate;
	}

	public void setRegisterDate(Date registerDate) {
		this.registerDate = registerDate;
	}

	public VIP() {
		super();
	}

	public VIP(long vipCard, String name, String password, int integral, Date registerDate) {
		super();
		this.vipCard = vipCard;
		this.name = name;
		this.password = password;
		this.integral = integral;
		this.registerDate = registerDate;
	}

	// 重写toString
	@Override
	public String toString() {
		return "您的会员卡号为:" + vipCard + ", 您的会员名是：" + name + ", 会员密码：" + password + ", 会员积分:" + integral + "开卡日期"
				+ new SimpleDateFormat("yyyy-MM-dd").format(registerDate);
	}

}

2.是程序入口测试类

package cn.kgc.main;

import cn.kgc.mgr.VIPmgr;

/**
 * 
 * @author xiaobubu
 *2019年2月23日下午4:54:03
 */
public class ClientMain {
	public static void main(String[] args) {
		
		VIPmgr vip = new VIPmgr();
		vip.start();
		
	}

}

3.是会员操作类

package cn.kgc.mgr;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Scanner;

import cn.kgc.entity.VIP;

/**
 * 会员操作类
 * 
 * @author xiaobubu 2019年2月23日下午4:55:34
 */
public class VIPmgr {
	// 导入Scanner类
	private Scanner input = new Scanner(System.in);

	// 创建集合
	private static ArrayList vipList = new ArrayList();
	// 初始化会员信息
	static {
		vipList.add(new VIP(11111111, "马云", "11111111", 11111111, new Date()));
		vipList.add(new VIP(22222222, "小韩", "22222222", 22222222, new Date()));
		vipList.add(new VIP(33333333, "小杜", "33333333", 33333333, new Date()));
	}

	/**
	 * 系统启动
	 */
	public void start() {
		// 先用到循环不确定次数的用while或者是do{}while()
		do {
			// 展示菜单
			showMenu();
			// 提示输入
			System.out.println("请输入你要选择的服务：");
			// 用string类型可以防止用户输入字符的错误
			String choose = input.next();
			switch (choose) {
			case "1":// 积分累计
				if (addIntegral()) {
					System.out.println("积分添加成功！");
				} else {
					System.out.println("积分添加失败");
				}

				break;
			case "2":// 积分兑换
				if (exchangeIntegral()) {
					System.out.println("积分兑换成功！");
				} else {
					System.out.println("积分兑换失败！");
				}
				break;
			case "3":// 查剩余积分
				findVIPInfo();

				break;
			case "4":// 修改密码
				VIP vip = vipLogin();// 登录
				if (vip != null) {// 登录成功
					System.out.println("请输入您的新密:");
					String password = "";
					do {
						password = input.next();
						if (password.length() < 6) {// 判断新的密码是否合格
							System.out.println("密码长度不能小于6");
							continue;
						}
						break;
					} while (true);
					// 设置新的密码
					vip.setPassword(password);
					System.out.println("密码修改成功，请您牢记密码！");
				} else {
					System.out.println("登录失败！");
				}
				break;
			case "5":// 开卡
				addVIP();

				break;
			case "6":// 退出
				System.out.println("欢迎下次光临！");

				break;

			default:
				System.out.println("输入有误，程序员小韩正在解决！");
				break;
			}

		} while (true);

	}

	/**
	 * 展示菜单
	 */
	public void showMenu() {
		System.out.println("欢迎来到汉网独步超市");
		System.out.println("1.积分累计");
		System.out.println("2.积分兑换");
		System.out.println("3.积分查询");
		System.out.println("4.修改密码");
		System.out.println("5.开卡");
		System.out.println("6.退出");
	}

	/**
	 ****** 登录功能
	 * 
	 * @return
	 */
	private VIP vipLogin() {
		VIP result = null;
		System.out.println("请输入会员卡号：");
		int vipCard = input.nextInt();
		System.out.println("请输入会员密码：");
		String password = input.next();
		// 查询会员所有的信息
		for (VIP vip : vipList) {
			if (vip.getVipCard() == vipCard && vip.getPassword().equals(password)) {
				result = vip;
			}
		}
		return result;
	}

	/**
	 ****** 1.积分累加
	 * 
	 * @return
	 */
	public boolean addIntegral() {
		boolean fag = false;
		VIP vip = vipLogin();// 登录
		if (vip != null) {
			System.out.println("请输入您的消费金额(消费一元等于一级分)");
			int integral = input.nextInt();
			// 积分进行累加
			vip.setIntegral(vip.getIntegral() + integral);
			fag = true;
		} else {
			System.out.println("登录失败！");
			fag = false;
		}
		return fag;
	}

	/**
	 * *****2.积分兑换
	 * 
	 * @return
	 */
	private boolean exchangeIntegral() {
		boolean fag = false;
		VIP vip = vipLogin();// 登录
		if (vip != null) {
			System.out.println("请输入要兑换的积分数量：");
			int integral = input.nextInt();
			if (integral <= vip.getIntegral()) {// 判断兑换的积分数量是否满足兑换的要求
				vip.setIntegral(vip.getIntegral() - integral);
				System.out.println("您兑换了：" + (integral / 100 * 0.1) + "元");
				fag = true;
			} else {
				System.out.println("积分不足！");
			}
		}

		return fag;
	}

	/**
	 * ******4.查询剩余积分
	 */
	private void findVIPInfo() {
		VIP vip = vipLogin();// 登录
		if (vip != null) {
			System.out.println(vip);
		} else {
			System.out.println("查询失败！");
		}
	}

	/**
	 * *****5开卡
	 */
	private void addVIP() {
		// 创建对象vip
		VIP vip = new VIP();
		System.out.println("请输入注册的姓名：");
		vip.setName(input.next());
		System.out.println("请输入注册的密码：");
		String password = "";
		do {
			password = input.next();
			if (password.length() < 6) {
				System.out.println("密码长度不能小于6，请重新输入！");
				continue;
			}
			break;
		} while (true);
		vip.setPassword(password);
		vip.setVipCard(creatCard());
		vip.setIntegral(100);
		vip.setRegisterDate(new Date());
		vipList.add(vip);
		System.out.println(vip);

	}

	/**
	 * 生成随机卡号8位
	 * 
	 * @return
	 */
	private long creatCard() {
		long id = 0;
		boolean fag;
		do {
			fag = true;
			id = (int) (Math.random() * (100000000 - 10000000)) + 10000000;
			// 遍历所有的会员列表，判断是否有重复
			for (VIP vip : vipList) {
				if (vip.getVipCard() == id) {
					fag = false;
				}
			}
		} while (!fag);
		return id;
	}

}