JDesktopPane class of java

[Sonam Goenka]

Hello Friends,

I need your help to solve one of my query related to the advanced java programming. I have very good knowledge about the core java, but class concept of advanced java is very strange for me. I am not getting use of JDesktopPane class of advanced java. I don't any idea about it's constructors also. If you have knowledge about the 'JDesktopPane class', then please let me know the same. I am waiting for your reply.

[Praetor]

Hi,

A JDesktopPane class is used to create a multiple-document interface or a virtual desktop. You create JInternalFrame objects and add them to the JDesktopPane. JDesktopPane extends JLayeredPane to manage the potentially overlapping internal frames. It also maintains a reference to an instance of DesktopManager that is set by the UI class for the current look and feel (L&F). Note that JDesktopPane does not support borders.

[Katty]

Hi friend,

I suggest you to refer following example of java, which will give you some idea about the JDesktopPane class of java:

import javax.swing.JDesktopPane;
import javax.swing.JLabel;

public class JDesktopPaneDM
 {
  public static void main(final String[] args) {
    JFrame VMX = new JFrame();
    VMX.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JDesktopPane desktop1 = new JDesktopPane();
    JInternalFrame internalFrame = new JInternalFrame("Can Do All", true, true, true, true);

    desktop1.add(internalFrame);

    internalFrame.setBounds(35, 35, 200, 100);

    JLabel label1 = new JLabel(internalFrame.getTitle(), JLabel.CENTER);
    internalFrame.add(label1, BorderLayout.CENTER);

    internalFrame.setVisible(true);

    VMX.add(desktop, BorderLayout.CENTER);
    VMX.setSize(500, 300);
    VMX.setVisible(true);
  }
}

[kelfro]

Following are some important methods of JDesktopPane class:

• setUI(DesktopPaneUI dui)
• getSelectedFrame()
• setDesktopManager(DesktopManager dsktMgr)
• setDragMode(int dragMode1)
• getAllFramesInLayer(int layer1)
• getAccessibleContext()

[Zecho]

If you want to create a JDesktopPane Container by using it's methods , then please go through following java code:

import javax.swing.JDesktopPane;

public class JDesktopMain {
  public static void main(String[] argtv) throws Exception {
    boolean resizable1 = true;
    boolean closeable1 = true;
    boolean maximizable1 = true;
    boolean iconifiable1 = true;
    String title = "Frame Title";
    JInternalFrame iframe0801 = new JInternalFrame(title, resizable1, closeable1, maximizable1,
        iconifiable1);

    iframe0801.setSize(300, 300);
    iframe0801.setVisible(true);
    iframe0801.getContentPane().add(new JTextArea());
    JDesktopPane desktop = new JDesktopPane();
    desktop.add(iframe0801);

    JFrame frame08 = new JFrame();
    frame08.getContentPane().add(desktop, BorderLayout.CENTER);
    frame08.setSize(400, 300);
    frame08.setVisible(true);
  }
}

[Reegan]

Hello Friends,

There are total six nested class of JDesktopPane class and which mentioned below:

1. Container.AccessibleAWTContainer
2. JDesktopPane.AccessibleJDesktopPane
3. Component.FlipBufferStrategy
4. JLayeredPane.AccessibleJLayeredPane
5. Component.AccessibleAWTComponent
6. JComponent.AccessibleJComponent