Show all the drives of a system in Tree format as it displays in windows

Question

Hi, I have the folloing code which is working fine to display a single drives files and folders but i want to display all the drives of my system with desktop and Doc & Settings in a single trre.
please help.
thanks in advanceimport javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
import java.io.File;
public class FileTreeDemo
     public static void main(String[] args)
              File root;
          if (args.length > 0) root = new File(args[0]);
              else root = new File(System.getProperty("user.home"));   
          /*root=new File("F:\\");
          System.out.println("value of root :"+root);*/
              FileTreeModel model = new FileTreeModel(root);   
              JTree tree = new JTree();
              tree.setModel(model);
          root=new File("E:\\");
             model = new FileTreeModel(root);
          tree.setModel(model);
          tree.setRootVisible(true);
              JScrollPane scrollpane = new JScrollPane(tree);   
              JFrame frame = new JFrame("FileTreeDemo");
              frame.getContentPane().add(scrollpane, "Center");
              frame.setSize(400,600);
              frame.setVisible(true);
class FileTreeModel implements TreeModel
     protected File root;
       public FileTreeModel(File root) { this.root = root; } 
       public Object getRoot() { return root; } 
       public boolean isLeaf(Object node) {  return ((File)node).isFile(); }
     public int getChildCount(Object parent)
              String[] children = ((File)parent).list();
              if (children == null) return 0;
              return children.length;
       public Object getChild(Object parent, int index)
              String[] children = ((File)parent).list();
              if ((children == null) || (index >= children.length)) return null;
              return new File((File) parent, children[index]);
       public int getIndexOfChild(Object parent, Object child)
              String[] children = ((File)parent).list();
              if (children == null) return -1;
                   String childname = ((File)child).getName();
              for(int i = 0; i < children.length; i++)
                     if (childname.equals(children)) return i;
          return -1;
     public void valueForPathChanged(TreePath path, Object newvalue) {}
     public void addTreeModelListener(TreeModelListener l) {}
     public void removeTreeModelListener(TreeModelListener l) {}

Answer 1

Hi,
Use the FileSystemView class of javax.swing.filechooser
create an instance of the view and choose the method:
File root = FileSystemView.getHomeDirectory();as your root file object.
Maybe you need to do some modifications on your FileTreeModel...
under windows the desktop node and the first level nodes down from there
are not real file-objects ...
Olek