Java JDesktopPane

by Online Tutorials Library July 14, 2022

Java JDesktopPane

The JDesktopPane class, can be used to create “multi-document” applications. A multi-document application can have many windows included in it. We do it by making the contentPane in the main window as an instance of the JDesktopPane class or a subclass. Internal windows add instances of JInternalFrame to the JdesktopPane instance. The internal windows are the instances of JInternalFrame or its subclasses.

Fields

Modifier and Type	Field	Description
static int	LIVE_DRAG_MODE	It indicates that the entire contents of the item being dragged should appear inside the desktop pane.
static int	OUTLINE_DRAG_MODE	It indicates that an outline only of the item being dragged should appear inside the desktop pane.

Constructor

Constructor	Description
JDesktopPane()	Creates a new JDesktopPane.

Java JDesktopPane Example

 import java.awt.BorderLayout; import java.awt.Container; import javax.swing.JDesktopPane; import javax.swing.JFrame; import javax.swing.JInternalFrame; import javax.swing.JLabel; public class JDPaneDemo extends JFrame {   public JDPaneDemo()    {     CustomDesktopPane desktopPane = new CustomDesktopPane();     Container contentPane = getContentPane();     contentPane.add(desktopPane, BorderLayout.CENTER);     desktopPane.display(desktopPane);      setTitle(“JDesktopPane Example”);     setSize(300,350);     setVisible(true);   }   public static void  main(String args[])   {     new JDPaneDemo();   } } class CustomDesktopPane extends JDesktopPane {   int numFrames = 3,  x = 30, y = 30;   public void display(CustomDesktopPane dp)    {     for(int  i = 0; i < numFrames ; ++i )      {       JInternalFrame jframe = new JInternalFrame(“Internal Frame ” + i ,  true, true, true, true);        jframe.setBounds(x, y, 250, 85);      Container c1 = jframe.getContentPane( ) ;      c1.add(new JLabel(“I love my country”));      dp.add( jframe );      jframe.setVisible(true);      y += 85;     }   } } 

Output:

Java Jdesktoppane

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