用java，gui实现这样一个代码，建立一个表格，点击表格中的一行，能够展示该行的详细信。该代码也可以用下拉菜单栏实现筛选功能(用注释解释)

以下是用Java Swing实现该功能的代码，已经添加了注释以方便理解：

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class TableDemo extends JFrame {
    private JTable table;
    private DefaultTableModel tableModel;
    private JLabel nameLabel;
    private JLabel ageLabel;
    private JLabel genderLabel;
    private JLabel addressLabel;
    private JLabel phoneLabel;
    private JTextField nameTextField;
    private JTextField ageTextField;
    private JComboBox<String> genderComboBox;
    private JTextField addressTextField;
    private JTextField phoneTextField;

    public TableDemo() {
        super("Table Demo");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout());

        // 创建表格模型
        tableModel = new DefaultTableModel(new String[]{"Name", "Age", "Gender", "Address", "Phone"}, 0);

        // 添加示例数据
        tableModel.addRow(new Object[]{"John Doe", 30, "Male", "123 Main St, Anytown USA", "555-1234"});
        tableModel.addRow(new Object[]{"Jane Smith", 25, "Female", "456 Oak St, Anytown USA", "555-5678"});

        // 创建表格并设置模型
        table = new JTable(tableModel);

        // 添加表格行点击事件监听器
        table.getSelectionModel().addListSelectionListener(event -> {
            int row = table.getSelectedRow();
            if (row >= 0) {
                nameTextField.setText((String) tableModel.getValueAt(row, 0));
                ageTextField.setText(String.valueOf(tableModel.getValueAt(row, 1)));
                genderComboBox.setSelectedItem(tableModel.getValueAt(row, 2));
                addressTextField.setText((String) tableModel.getValueAt(row, 3));
                phoneTextField.setText((String) tableModel.getValueAt(row, 4));
            }
        });

        // 创建筛选面板
        JPanel filterPanel = new JPanel(new FlowLayout());

        // 添加筛选条件下拉菜单
        String[] genders = {"All", "Male", "Female"};
        JComboBox<String> filterComboBox = new JComboBox<>(genders);
        filterPanel.add(new JLabel("Gender:"));
        filterPanel.add(filterComboBox);

        // 添加筛选按钮
        JButton filterButton = new JButton("Filter");
        filterButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String selectedGender = (String) filterComboBox.getSelectedItem();
                for (int i = tableModel.getRowCount() - 1; i >= 0; i--) {
                    String gender = (String) tableModel.getValueAt(i, 2);
                    if (!selectedGender.equals("All") && !selectedGender.equals(gender)) {
                        tableModel.removeRow(i);
                    } else if (selectedGender.equals("All") && tableModel.getRowCount() < 2) {
                        // 如果是“全部”选项，并且表格中只有一行，则不删除
                        break;
                    }
                }
            }
        });
        filterPanel.add(filterButton);

        // 添加表格和筛选面板到主面板
        add(new JScrollPane(table), BorderLayout.CENTER);
        add(filterPanel, BorderLayout.NORTH);

        // 创建详细信息面板
        JPanel detailPanel = new JPanel(new GridLayout(5, 2));
        nameLabel = new JLabel("Name:");
        ageLabel = new JLabel("Age:");
        genderLabel = new JLabel("Gender:");
        addressLabel = new JLabel("Address:");
        phoneLabel = new JLabel("Phone:");
        nameTextField = new JTextField();
        ageTextField = new JTextField();
        genderComboBox = new JComboBox<>(genders);
        addressTextField = new JTextField();
        phoneTextField = new JTextField();
        detailPanel.add(nameLabel);
        detailPanel.add(nameTextField);
        detailPanel.add(ageLabel);
        detailPanel.add(ageTextField);
        detailPanel.add(genderLabel);
        detailPanel.add(genderComboBox);
        detailPanel.add(addressLabel);
        detailPanel.add(addressTextField);
        detailPanel.add(phoneLabel);
        detailPanel.add(phoneTextField);

        // 添加详细信息面板到主面板
        add(detailPanel, BorderLayout.SOUTH);

        // 显示窗口
        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }

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

运行上述代码后，将会看到一个带有表格和筛选面板的窗口。可以使用下拉菜单来筛选特定性别的行，也可以点击表格中的行来查看详细信息。