Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.BorderLayout;

import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;

public class Main {
    public static void main(String args[]) {
        JFrame f = new JFrame("Sample");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JLayeredPane desktop = new JDesktopPane();
        desktop.setOpaque(false);
        desktop.add(new SelfInternalFrame("1"), JLayeredPane.POPUP_LAYER);
        f.add(desktop, BorderLayout.CENTER);
        f.setSize(300, 200);
        f.setVisible(true);
    }

}

class SelfInternalFrame extends JInternalFrame {
    public SelfInternalFrame(String s) {
        getContentPane().add(new JLabel(s), BorderLayout.CENTER);
        setBounds(50, 50, 100, 100);
        setResizable(true);
        setClosable(true);
        setMaximizable(true);
        setIconifiable(true);
        setTitle(s);
        setVisible(true);
    }
}