java实现抽签抓阄(附完整源码)

下面是一个简单的Java实现抽签抓阄的代码，包括了两个版本：一个是基于命令行的文本版本，另一个是基于Java Swing的GUI版本。

首先是文本版本的抽签抓阄代码。这个代码实现了一个简单的抽签抓阄程序，用户可以输入参与者的名字，然后程序将随机打乱名字的顺序，并依次输出每个名字，实现抽签抓阄的功能。

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        List<String> names = new ArrayList<>();

        // Input the names of participants
        System.out.println("Please input the names of the participants (one name per line, press Enter to finish):");
        while (true) {
            String name = scanner.nextLine().trim();
            if (name.isEmpty()) {
                break;
            }
            names.add(name);
        }

        // Shuffle the order of names
        Collections.shuffle(names);

        // Output the names in random order
        System.out.println("The order of drawing lots is:");
        for (String name : names) {
            System.out.println(name);
        }
    }
}

接下来是GUI版本的抽签抓阄代码。这个代码使用Java Swing实现了一个简单的用户界面，用户可以在其中输入参与者的名字，点击"Draw Lots"按钮进行抽签抓阄，然后程序将随机打乱名字的顺序，并依次在界面中输出每个名字。

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class MainGUI extends JFrame implements ActionListener {
    private JTextField nameField;
    private JTextArea resultArea;
    private List<String> names;

    public MainGUI() {
        super("Draw Lots");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Initialize the components
        JLabel nameLabel = new JLabel("Name:");
        nameField = new JTextField(20);
        JButton addButton = new JButton("Add");
        addButton.addActionListener(this);
        JButton drawLotsButton = new JButton("Draw Lots");
        drawLotsButton.addActionListener(this);
        resultArea = new JTextArea(10, 20);
        resultArea.setEditable(false);

        // Add the components to the frame
        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();
        c.gridx = 0;
        c.gridy = 0;
        c.anchor = GridBagConstraints.LINE_END;
        panel.add(nameLabel, c);
        c.gridx = 1;
        c.anchor = GridBagConstraints.LINE_START;
        panel.add(nameField, c);
        c.gridx = 2;
        panel.add(addButton, c);
        c.gridx = 0;
        c.gridy = 1;
        c.gridwidth = 3;
        panel.add(drawLotsButton, c);
        c.gridy = 2;
        panel.add(new JScrollPane(resultArea), c);
        add(panel);

        // Initialize the names list
        names = new ArrayList<>();

        // Show the frame
        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        String command = e.getActionCommand();
        if (command.equals("Add")) {
            // Add a name to the list
            String name = nameField.getText().trim();
            if (!name.isEmpty()) {
                names.add(name);
            }
            nameField.setText("");
        } else if (command.equals("Draw Lots")) {
            // Shuffle the order of names
            Collections.shuffle(names);

            // Output the names in random order
            resultArea.setText("The order of drawing lots is:\n");
            for (String name : names) {
                resultArea.append(name + "\n");
            }
        }
    }

    public static void main(String[] args) {
        new MainGUI();
    }
}

以上代码实现了一个简单的抽签抓阄程序，用户可以根据自己的需要选择文本版本或GUI版本进行使用。