第十章

幸运抽奖
package cn.jbit.array;
import java.util.Scanner;
public class dome1 {
public static void main(String[] args) {
String jixu =”y”;
String name =”“;
String mima =”“;
int ka =0;
boolean che =false;
boolean che1=false;
int max =9999;
int min =1000;
do{
System.out.println(“*欢迎进入奖励富翁系统*\n”);
System.out.println(“\n1.注册”);
System.out.println(“\n2.登录”);
System.out.println(“\n3.抽奖”);
@SuppressWarnings(“resource”)
Scanner input = new Scanner(System.in);
System.out.print(“\n请输入菜单:”);
int bain =input.nextInt();
switch(bain){
case 1 :
System.out.println(“”);
System.err.println(“注册界面\n”);
System.out.print(“请输入注册信息:\n”);
System.out.println(“”);
System.out.print(“请输入用户名:”);
name =input.next();
System.out.print(“请输入密码:”);
mima =input.next();
ka = (int)(Math.random()*(max-min))+min;
System.out.println(“注册成功！请记住您的会员卡号”+ka+”\t”+”和用户名”+name+”\t”+”以及密码:”+mima);
che =true;
break;
case 2 :
System.err.println(“登录界面”);
System.out.println(“”);
if(che){
for(int i=1;i<=3;i++){
System.out.println(“请输入用户名:”);
String isname =input.next();
System.out.println(“请输入密码:”);
String ismima =input.next();
if(name.equals(isname) && mima.equals(ismima)){
System.out.println(“”);
System.out.println(“登录成功！欢迎您！”+name);
che1=true;
break;
}else if(i<3){
System.out.println(“您还有”+(3-i)+”次机会”);
}else{
System.out.println(“您三次均输错！”);
}
}
}else{
System.out.println(“请先注册再登录！”);
}
break;
case 3 :
System.err.println(“抽奖界面”);
if(!che){
System.out.println(“您还没登录，请先登录再抽奖！”);
System.out.println(“是否进行下一步？(y/n)”);
jixu =input.next();
}else{
int[] a = new int[5];
for(int i=0;i<5;i++){
a[i] = (int)(Math.random()*(max-min))+min;
}
System.out.println(“请输入您的卡号:”);
int ka2 =input.nextInt();
int c = 0;
System.out.println(“本日的幸运数字是:”);
for(int i =0;i<5;i++){
System.out.println(a[i]+”\t”);
}
for(int i =0;i<5;i++){
if(a[i]==ka2){
System.out.println(“恭喜你！您是今天的幸运会员”);
break;
}else if(i==a.length-1){
System.out.println(“您不是幸运会员”);
}
}
}
break;
default:
System.out.println(“您的输入有误！”);
break;
}
System.out.println(“是否进行下一步？(y/n)”);
jixu =input.next();
System.out.println(“”);
}while(“y”.equals(jixu));
if(jixu!=”y”){
System.out.println(“您的输入有误,系统退出！”);
}
}
}