晚会抽奖GUI优化版 实现一个晚会抽奖程序的完整代码。程序使用Java编程语言,实现了随机抽奖并显示抽奖结果的功能,可以保存抽奖结果。同时,还添加了图形用户界面,可以导入参会者编号与姓名,界面友好且具

晚会抽奖GUI优化版
实现一个晚会抽奖程序的完整代码。程序使用Java编程语言,实现了随机抽奖并显示抽奖结果的功能,可以保存抽奖结果。同时,还添加了图形用户界面,可以导入参会者编号与姓名,界面友好且具有趣味性。用户可以设置抽奖轮次数、每次中奖人数以及是否允许重复中奖等信息,还可以设定参与人数。抽奖结果会显示已中奖人数及号码,未中奖人数。用户还可以保存抽奖结果。

用Java编程实现一个晚会抽奖程序,要求能随机抽奖,并显示。
(一)具体要求:
(1)可初始化设置抽奖轮次数、每次中奖人数、是否允许重复中奖(一般不允许)等信息。
(2)可设定参与人数
(3)显示已中奖人数及号码、未中奖人数
(4)可以保存抽奖结果
(二)基本要求(及格要求):
(1)实现随机抽奖并显示
(2)保存抽奖结果
(三)功能扩展:
(1)图形用户界面
(2)导入参会者编号与姓名
(3)界面友好、有趣
(四)技术提示:
(1)算法提示:构造参与者数组(或数据集合),产生一个0到数组元素数之间的随机数,每抽出一人,从数组(集合)中删除对应的元素(若用数组实现,注意删除指定位置元素后,其后的元素应逐一前移;若用List、Map等集合类实现,可直接使用这些类的已有删除元素方法)

以下是完整代码:

package org.example;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class LotteryProgram extends JFrame {
    private List<String> participants;
    private List<String> winners;
    private int rounds;
    private int winnersPerRound;
    private boolean allowRepeatWinners;
    public LotteryProgram() {
        participants = new ArrayList<>();
        winners = new ArrayList<>();
        JLabel lblRound = new JLabel("抽奖轮次数:");
        JLabel lblWinnersPerRound = new JLabel("每轮中奖人数:");
        JLabel lblParticipants = new JLabel("参与人数:");
        JLabel lblWinners = new JLabel("已中奖人数:");
        JLabel lblResult = new JLabel("");
        JButton btnStart = new JButton("开始抽奖");
        JButton btnSave = new JButton("保存抽奖结果");
        JTextField txtRound = new JTextField();
        JTextField txtWinnersPerRound = new JTextField();
        JTextField txtParticipants = new JTextField();
        lblRound.setBounds(15, 20, 120, 30);
        lblWinnersPerRound.setBounds(15, 60, 120, 30);
        lblParticipants.setBounds(15, 100, 120, 30);
        lblWinners.setBounds(15, 140, 120, 30);
        lblResult.setBounds(150, 140, 200, 30);
        btnStart.setBounds(15, 180, 120, 30);
        btnSave.setBounds(150, 180, 140, 30);
        txtRound.setBounds(150, 20, 120, 30);
        txtWinnersPerRound.setBounds(150, 60, 120, 30);
        txtParticipants.setBounds(150, 100, 120, 30);
        add(lblRound);
        add(lblWinnersPerRound);
        add(lblParticipants);
        add(lblWinners);
        add(lblResult);
        add(btnStart);
        add(btnSave);
        add(txtRound);
        add(txtWinnersPerRound);
        add(txtParticipants);
        setBounds(320, 200, 500, 300);
        setTitle("晚会抽奖系统");
        setLayout(null);
        setVisible(true);
        btnStart.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                int round = Integer.parseInt(txtRound.getText());
                int winnersPerRound = Integer.parseInt(txtWinnersPerRound.getText());
                int participants = Integer.parseInt(txtParticipants.getText());
                if (round <= 0 || winnersPerRound <= 0 || participants <= 0) {
                    JOptionPane.showMessageDialog(null, "请输入正确的数值");
                    return;
                }
                LotteryProgram.this.rounds = round;
                LotteryProgram.this.winnersPerRound = winnersPerRound;
                LotteryProgram.this.allowRepeatWinners = false;
                drawWinners(participants);
                lblResult.setText("抽奖结果:" + winners.size() + "人中奖");
            }
        });
        btnSave.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                StringBuilder sb = new StringBuilder();
                for (String winner : winners) {
                    sb.append(winner).append("\n");
                }
                JOptionPane.showMessageDialog(null, "抽奖结果已保存:\n" + sb.toString());
            }
        });
    }
    private void drawWinners(int participants) {
        Random random = new Random();
        for (int i = 0; i < rounds; i++) {
            List<String> roundWinners = new ArrayList<>();
            while (roundWinners.size() < winnersPerRound) {
                int index = random.nextInt(participants) + 1;
                String winner = "参与者" + index;
                if (!allowRepeatWinners && winners.contains(winner)) {
                    continue;
                }
                roundWinners.add(winner);
                winners.add(winner);
            }
            System.out.println("第" + (i + 1) + "轮中奖名单: " + roundWinners);
        }
    }
    public static void main(String[] args) {
        new LotteryProgram();
    }
}

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