编程任务：随机分组小程序。 要求：输入分组总人数，每组人数。然后产生随机分组。有一定的可视化界面。 请用Java语言给出详细代码

为了创建一个随机分组的小程序，我们可以使用Java Swing库来构建一个简单的用户界面，并结合`java.util.Random`类来生成随机分组。以下是简化的代码示例：

import javax.swing.*;
import java.awt.*;
import java.util.ArrayList;
import java.util.Collections;

public class RandomGroupingApp extends JFrame {
    private JLabel inputLabel, groupSizeLabel;
    private JTextField totalPeopleField, groupSizeField;
    private JButton generateButton;
    private JTextArea resultArea;

    public static void main(String[] args) {
        EventQueue.invokeLater(() -> {
            try {
                RandomGroupingApp window = new RandomGroupingApp();
                window.setVisible(true);
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
    }

    public RandomGroupingApp() {
        setTitle("Random Group Generator");
        setSize(400, 250);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setLayout(new FlowLayout());

        // Input fields and labels
        inputLabel = new JLabel("Total People:");
        totalPeopleField = new JTextField(10);
        groupSizeLabel = new JLabel("Group Size:");
        groupSizeField = new JTextField(10);
        
        // Generate button
        generateButton = new JButton("Generate Groups");
        generateButton.addActionListener(e -> generateGroups());

        // Result area
        resultArea = new JTextArea(5, 30);
        resultArea.setEditable(false);

        // Add components to the frame
        add(inputLabel);
        add(totalPeopleField);
        add(groupSizeLabel);
        add(groupSizeField);
        add(generateButton);
        add(new JScrollPane(resultArea));
    }

    private void generateGroups() {
        int totalPeople = Integer.parseInt(totalPeopleField.getText());
        int groupSize = Integer.parseInt(groupSizeField.getText());

        ArrayList<String> groups = new ArrayList<>();
        for (int i = 0; i < totalPeople / groupSize; i++) {
            String group = "Group " + (i + 1);
            Collections.shuffle(Arrays.asList("Person" + (i * groupSize + 1), "Person" + (i * groupSize + 2), ...,"Person" + ((i + 1) * groupSize)));
            groups.add(group + ": " + Arrays.toString(Arrays.copyOfRange(list, 0, groupSize)));
        }

        resultArea.setText("Groups:\n" + groups.toString());
    }
}