Java JDesktopPane.removeAll()

public void removeAll()

/* w  w  w .  java  2s  .com*/
import java.awt.BorderLayout;

import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.event.InternalFrameAdapter;
import javax.swing.event.InternalFrameEvent;
import javax.swing.event.InternalFrameListener;

public class Main {

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

    JDesktopPane desktop = new JDesktopPane();
    JInternalFrame internalFrames[] = {
        new JInternalFrame("Can Do All", true, true, true, true),
        new JInternalFrame("Not Resizable", false, true, true, true),
        new JInternalFrame("Not Closable", true, false, true, true),
        new JInternalFrame("Not Maximizable", true, true, false, true),
        new JInternalFrame("Not Iconifiable", true, true, true, false) };

    int pos = 0;
    for (JInternalFrame internalFrame : internalFrames) {
      desktop.add(internalFrame);

      internalFrame.setBounds(pos * 25, pos * 25, 200, 100);
      pos++;

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

      internalFrame.setVisible(true);
    }
    desktop.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
    
    desktop.removeAll();
    
    
    frame.add(desktop, BorderLayout.CENTER);
    frame.setSize(500, 300);
    frame.setVisible(true);
  }
}