jtree dosya sistemi oluşturma

public class FileTree implements TreeModel { 
   
  	private File root; 
   
  	public FileTree(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[i])) 
  				return i; 
  		} 
  		return -1; 
  	} 
  

 
  import java.awt.BorderLayout; 
  import java.awt.event.MouseEvent; 
  import java.awt.event.MouseListener; 
  import java.io.File; 
  import java.sql.Date; 
   
  import javax.swing.JFrame; 
  import javax.swing.JScrollPane; 
  import javax.swing.JSplitPane; 
  import javax.swing.JTable; 
  import javax.swing.JTree; 
  import javax.swing.table.DefaultTableModel; 
   
  public class GuiFile { 
   
  	private JFrame frame; 
  	private JTree tree; 
  	private DefaultTableModel tableModel; 
  	private FileTree model; 
   
  	GuiFile() { 
  		getFrame().setVisible(true); 
  	} 
   
  	public JFrame getFrame() { 
  		if (frame == null) { 
  			frame = new JFrame("File Tree"); 
  			frame.setLayout(new BorderLayout()); 
  			frame.add(new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true, 
  					new JScrollPane(getTree()), new JScrollPane(new JTable( 
  							getTableModel())))); 
  			frame.setSize(1100, 600); 
  		} 
  		return frame; 
  	} 
   
  	public DefaultTableModel getTableModel() { 
  		if (this.tableModel == null) { 
  			tableModel = new DefaultTableModel(); 
  			tableModel.addColumn("Name"); 
  			tableModel.addColumn("Date"); 
  		} 
  		return tableModel; 
  	} 
   
  	public JTree getTree() { 
  		if (tree == null) { 
  			this.tree = new JTree(); 
  			tree.setModel(getModel()); 
  			tree.addMouseListener(mListeneer()); 
  		} 
  		return tree; 
  	} 
   
  	public FileTree getModel() { 
  		if (model == null) { 
  			this.model = new FileTree(new File("C:/")); 
  		} 
  		return model; 
  	} 
   
  	private MouseListener mListeneer() { 
   
  		return new MouseListener() { 
   
  			@Override 
  			public void mouseClicked(MouseEvent e) { 
  				File file = (File) tree.getLastSelectedPathComponent(); 
   
   
  				tableModel.getDataVector().removeAllElements(); 
   
  				int rows = model.getChildCount(file); 
  				for (int i = 0; i <= rows; i++) { 
  					Object ad = model.getChild(file, i); 
  					Date tarih = new Date(((File) ad).lastModified()); 
  					tableModel.addRow(new Object[] { ad, tarih }); 
  				} 
  			} 
   
  			@Override 
  			public void mousePressed(MouseEvent e) { 
  			} 
   
  			@Override 
  			public void mouseReleased(MouseEvent e) { 
  			} 
   
  			@Override 
  			public void mouseEntered(MouseEvent e) { 
  			} 
   
  			@Override 
  			public void mouseExited(MouseEvent e) { 
  			} 
  		}; 
  	} 
   
  	public static void main(String[] args) { 
   
  		new GuiFile(); 
  	} 
  }