java用户抽奖系统

在这里插入代码片

package 项目01;

import java.util.Scanner;

public class Luck {

public static void main(String[] args) {
	// TODO Auto-generated method stub
	String answer = " ";
	String admin = " ";
	String m = " ";
	int cardNumber;
	int cardNumber2;
	int luck1;
	int luck2;
	int luck3;
	int luck4;
	Scanner input = new Scanner(System.in);
	do {
		System.out.println("*********欢迎来到奖客富翁系统*********");
		System.out.println("         1,注册");
		System.out.println("         2,登陆");
		System.out.println("         3,抽奖");
		System.out.println("*************************************");
		System.out.println("请选择菜单");
		int id = input.nextInt();
		switch (id) {
		case 1:
			do {
				System.out.println("【奖客富翁系统》注册】");
				System.out.println("请填写个人注册信息");
				System.out.println("用户名：");
				admin = input.next();
				System.out.println("密码：");
				m = input.next();
				if (admin.equals(null) || m.equals(null)) {
					System.out.println("请完善您的注册信息");
					continue;
				} else {
					System.out.println("注册成功，请记好您的会员卡号");
					int max = 9999;
					int min = 1000;

					cardNumber = (int) (Math.random() * (max - min)) + min;
					System.out.println("用户名        密码           会员卡");
					System.out.println(admin + "    " + m + "    " + cardNumber);
					break;
				}
			} while (answer.equals("y"));
			System.out.println("继续吗(y/n)");
			answer = input.next();
			break;
		case 2:
			do {
				System.out.println("【奖客富翁系统》登陆】");
				System.out.println("请输入您的用户名");
				String admin2 = input.next();
				System.out.println("请输入您的密码");
				String m2 = input.next();
				if (admin2.equals(admin) && m2.equals(m)) {
					System.out.println("欢迎您：" + admin);
					break;
					
				} else {
					System.out.println("登陆错误");
					System.out.println("是否继续登陆(y/n)");
					answer = input.next();
				}
			} while (answer.equals("y"));
			System.out.println("继续吗(y/n)");
			answer = input.next();
			break;
		case 3:
			System.out.println("【奖客富翁系统》抽奖】");
			System.out.println("请输入您的卡号：");
			cardNumber2 = input.nextInt();
			int max2 = 9999;
			int min2 = 1000;

			luck1 = (int) (Math.random() * (max2 - min2)) + min2;
			luck2 = (int) (Math.random() * (max2 - min2)) + min2;
			luck3 = (int) (Math.random() * (max2 - min2)) + min2;
			luck4 = (int) (Math.random() * (max2 - min2)) + min2;
			System.out.println("本日的幸运数字为:" + luck1 + "   " + luck2 + "  " + luck3 + "  " + luck4);
			if (luck1 != cardNumber2 && luck2 != cardNumber2 && luck3 != cardNumber2 && luck4 != cardNumber2) {
				System.out.println("抱歉您不是本日的幸运会员");
			} else {
				System.out.println("恭喜您是本日的幸运会员");
			}
			System.out.println("继续吗(y/n)");
			answer = input.next();
			break;

		}
	} while (answer.equals("y"));
	System.out.println("系统退出谢谢使用");

}

}


在这里插入图片描述