Question

I have 2 classes, mainFrame and panel. By clicking the button on mainFrame I call panel from another class and set it in tabbed pane which is in JFrame (mainFrame class). Now, I have another button (btnRemove) on my panel in panel class. So when I click that button I want to remove my panel from tabbed pane in mainFrame class. How do I write my listener properly?

mainFrame class:

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class MainFrame extends JFrame {
JTabbedPane tPane = new JTabbedPane();
JButton btn = new JButton("Add panel");
public MainFrame(){
    setSize(400,300);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
    setLayout(new BorderLayout());
    add(tPane, BorderLayout.CENTER);
    add(btn,BorderLayout.NORTH);
    btn.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e){
            panel p = new panel();
            tPane.add("Panel",p);
        }
    });
}

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

panel class:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Panel extends JPanel{
JButton btnRemove = new JButton("Remove panel");

public Panel(){
    setLayout(new FlowLayout());
    add(btnRemove);
    btnRemove.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e){

        }
    });

}
}

Answer 1

panel.this.getParent().remove(panel.this);

If you want the code to keep working even if you nest the button inside a sub-panel, you should use the follwoing:

SwingUtilities.getAncestorOfClass(JTabbedPane.class, panel.this).remove(panel.this);

Side note: please respect Java naming conventions: classes start with upper-case letters.