java小程序之——幸运抽奖

来源：互联网发布：室内采光优化编辑：程序博客网时间：2024/04/28 00:44
用户登录
用户注册
用户抽奖
代码如下：
import java.util.Scanner;public class Luck{ public static void main(String[] args){  @SuppressWarnings("resource")  Scanner input = new Scanner(System.in);  String continueChoice = "n";  String userNamer = "";  String password = "";  int cardNumber = 0000;  int max = 9999;  int min = 1000;  boolean isRegister = false;  boolean isLogin = false;  do{   System.out.println("\n*****欢迎进入奖客富翁系统*****");   System.out.println("\t 1.注册");   System.out.println("\t 2.登陆");   System.out.println("\t 3.抽奖");   System.out.println("******************************\n");   System.out.print("请选择菜单：");   int menChoice = input.nextInt();   switch(menChoice){    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：");     userNamer = input.next();     System.out.print("密码：");     password = input.next();     System.out.println(" ");     cardNumber = (int)(Math.random()*(max - min))+min;     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\t");     System.out.println(userNamer+"\t"+password+"\t"+cardNumber);     isRegister = true;     break;    case 2:     System.out.println("[奖客富翁系统>登陆]");     if(isRegister){      for(int i=1;i<=3;i++){       System.out.print("请输入用户名：");       String inputUserNamer = input.next();       System.out.print("请输入密码：");       String inputPassWord = input.next();       if(userNamer.equals(inputUserNamer)&&password.equals(inputPassWord)){        System.out.println("欢迎您："+inputUserNamer);        isLogin = true;        break;        }else if(i<3){         System.out.println("用户名或者密码错误，还有"+(3-i)+"机会"+"\n");         }else{         System.out.println("您3次均输入错误");         }       }      }else{       System.out.println("请先注册，再登陆");      }     break;    case 3:        System.out.println("[奖客富翁系统>抽奖]");        if(isLogin){            int[] luckyNums = new int[10];            for(int i=0;i<luckyNums.length;i++){                luckyNums[i] = (int)(Math.random()*(max-min))+min;            }      System.out.print("请输入你的卡号:");        int youCard = input.nextInt();      int i = 0;      System.out.print("\n本日的幸运数字为：");      for(i=0;i<luckyNums.length;i++){          System.out.print(luckyNums[i]+" ");      }      for(i=0;i<luckyNums.length;i++){          if(luckyNums[i]==youCard){        System.out.println("\n恭喜!您是本日的幸运会员!");        break;        }       }       if(i==luckyNums.length){        System.out.println("\n抱歉!您不是本日的幸运会员!");        }      }else{       System.out.println("请先登录，再抽奖!");       System.out.println("继续吗？（y/n）");       continueChoice = input.next();      }     break;     default:        System.out.println("您的输入有误");        break;   }   System.out.print("继续吗？（y/n）：");   continueChoice = input.next();   }while("y".equals(continueChoice));   if("n".equals(continueChoice)){    System.out.println("系统退出，谢谢使用!");    }  }}
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