InternalTest.java Source code

Introduction

Here is the source code for InternalTest.java

Source

import java.awt.BorderLayout;
import java.awt.Container;

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

public class InternalTest {
    public static void main(String args[]) {
        JFrame frame = new JFrame();
        Container contentPane = frame.getContentPane();
        JLayeredPane desktop = new JDesktopPane();
        desktop.setOpaque(false);
        desktop.add(createLayer("One"), JLayeredPane.POPUP_LAYER);
        desktop.add(createLayer("Two"), JLayeredPane.DEFAULT_LAYER);
        desktop.add(createLayer("Three"), JLayeredPane.PALETTE_LAYER);
        contentPane.add(desktop, BorderLayout.CENTER);
        frame.setSize(300, 300);
        frame.show();
    }

    static JInternalFrame createLayer(String label) {
        return new SelfInternalFrame(label);
    }

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