用java写一个编写会员类： 编写测试类： 接收控制台用户输入会员号、会员姓名、积分，创建一个会员对象，验证会员号是否合法，不合法提示退出，合法保存会员数据，同时显示当前用户的折扣信息，最后进行抽奖，提示是否是幸运用户。

以下是Java代码：

会员类：

public class Member {
    private String memberId;
    private String memberName;
    private int points;

    public Member(String memberId, String memberName, int points) {
        this.memberId = memberId;
        this.memberName = memberName;
        this.points = points;
    }

    public String getMemberId() {
        return memberId;
    }

    public void setMemberId(String memberId) {
        this.memberId = memberId;
    }

    public String getMemberName() {
        return memberName;
    }

    public void setMemberName(String memberName) {
        this.memberName = memberName;
    }

    public int getPoints() {
        return points;
    }

    public void setPoints(int points) {
        this.points = points;
    }

    public double getDiscount() {
        if (points < 1000) {
            return 0.9;
        } else if (points < 5000) {
            return 0.8;
        } else if (points < 10000) {
            return 0.7;
        } else {
            return 0.6;
        }
    }

    public boolean isLucky() {
        return Math.random() < 0.05;
    }
}

测试类：

import java.util.Scanner;

public class MemberTest {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("请输入会员号：");
        String memberId = scanner.nextLine();

        System.out.print("请输入会员姓名：");
        String memberName = scanner.nextLine();

        System.out.print("请输入积分：");
        int points = scanner.nextInt();

        Member member = new Member(memberId, memberName, points);
        double discount = member.getDiscount();
        boolean isLucky = member.isLucky();

        if (discount == 1) {
            System.out.println("该会员号不合法！");
            return;
        }

        System.out.println("当前用户折扣信息：" + discount * 10 + "折");

        if (isLucky) {
            System.out.println("恭喜您，是本次的幸运用户！");
        } else {
            System.out.println("您不是本次的幸运用户！");
        }
    }
}

请注意：这里只是一个简单的示例，实际情况下，会员类和测试类可能需要更为复杂的逻辑和方法。