向JTabbedPane选项卡栏添加“最小化”按钮

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

public class MinimizableTabbedPane extends JTabbedPane {
    private JButton minimizeButton;

    public MinimizableTabbedPane() {
        super();
        initializeMinimizeButton();
    }

    private void initializeMinimizeButton() {
        minimizeButton = new JButton("-");
        minimizeButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 最小化按钮的点击事件处理逻辑
                // 可以在这里实现选项卡的最小化行为
            }
        });

        // 将最小化按钮添加到选项卡面板的标题栏
        JPanel tabPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));
        tabPanel.setOpaque(false);
        tabPanel.add(minimizeButton);
        setTabComponentAt(getTabCount() - 1, tabPanel);
    }
}

import javax.swing.*;

public class MainFrame extends JFrame {
    public MainFrame() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(800, 600);

        MinimizableTabbedPane tabbedPane = new MinimizableTabbedPane();
        tabbedPane.addTab("Tab 1", new JPanel());
        tabbedPane.addTab("Tab 2", new JPanel());
        tabbedPane.addTab("Tab 3", new JPanel());

        add(tabbedPane);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new MainFrame().setVisible(true);
            }
        });
    }
}