多线程抽奖java代码 java写抽奖系统

本文实例为大家分享了java实现抽奖系统的具体代码，供大家参考，具体内容如下

import java.util.Scanner;
public class luckyDraw {
public static void main(String[] args) {
String option;
String username = "";
int password = 0;
int cardNumber = 0;
int max = 9999;
int mix = 1000;
do {
System.out.println("********欢迎进入奖客富翁系统********");
System.out.println("t1.注册");
System.out.println("t2.登录");
System.out.println("t3.抽奖");
System.out.println("*******************************");
Scanner in = new Scanner(System.in);
System.out.print("请选择菜单：");
int num = in.nextInt();
switch(num) {
case 1:
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.print("用户名：");
username = in.next();
System.out.print("密码：");
password = in.nextInt();
cardNumber = (int)(Math.random()*(max-mix))+mix;
System.out.println();
System.out.println("注册成功，请记好您的会员卡号");
System.out.println("用户名t密码t会员卡号");
System.out.println(username+"t"+password+"t"+cardNumber);
break;
case 2:
for (int i = 1; i < 4; i++) {
System.out.println("[奖客富翁系统 > 登录]");
System.out.print("请输入用户名：");
String username1 = in.next();
System.out.print("请输入密码：");
int password1 = in.nextInt();
if ((username1.equals(username))&(password1==password)) {
System.out.println("欢迎您："+username);
break;
} else {
System.out.println("用户名或密码错误！请重新输入(最多3次机会，当前第"+i+"次)！");
}
}
break;
case 3:
System.out.println("[奖客富翁系统 > 抽奖]");
for(int i = 1;i < 4;i++) {
System.out.print("请输入您的卡号:");
int cardNumber1 = in.nextInt();
if(cardNumber1==cardNumber) {
int luckynumber1 = (int)(Math.random()*(max-mix))+mix;
int luckynumber2 = (int)(Math.random()*(max-mix))+mix;
int luckynumber3 = (int)(Math.random()*(max-mix))+mix;
int luckynumber4 = (int)(Math.random()*(max-mix))+mix;
int luckynumber5 = (int)(Math.random()*(max-mix))+mix;
System.out.println();
System.out.println("本日的幸运数字为："+luckynumber1+" "+luckynumber2+" "+luckynumber3+" "+luckynumber4+" "+luckynumber5);
if ((cardNumber1==luckynumber1)||(cardNumber1==luckynumber2)||(cardNumber1==luckynumber3)||(cardNumber1==luckynumber4)||(cardNumber1==luckynumber5)) {
System.out.println("恭喜！您是本日的幸运会员！");
} else {
System.out.println("抱歉！您不是本日的幸运会员！");
}
break;
}else {
System.out.println("会员卡号不正确，您还有"+(3-i)+"次机会！");
}
}
break;
default:
System.out.println("您的输入有误！");
}
System.out.print("继续吗？(y/n):");
option = in.next();
System.out.println();
} while ("y".equals(option));
System.out.println("系统退出，谢谢使用！");
}
}