import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
/***********************************/
class Explorer extends JPanel implements ActionListener
{
JTextField jtf;
JTextArea jta;
JTree tree;
JButton refresh;
JTable jtb;
JScrollPane jsp;
JScrollPane jspTable;

String currDirectory=null;

final String[] colHeads={"File Name","SIZE(in Bytes)","Read Only","Hidden"};
String[][]data={{"","","","",""}};

/////////////////////////////////
Explorer(String path)
{

jtf=new JTextField();
jta=new JTextArea(5,30);
refresh=new JButton("Refresh");

File temp=new File(path);
DefaultMutableTreeNode top=createTree(temp);

//if(top!=null)

tree=new JTree(top);

jsp=new JScrollPane(tree);

final String[] colHeads={"File Name","SIZE(in Bytes)","Read Only","Hidden"};
String[][]data={{"","","","",""}};
jtb=new JTable(data, colHeads);
jspTable=new JScrollPane(jtb);

setLayout(new BorderLayout());
add(jtf,BorderLayout.NORTH);
add(jsp,BorderLayout.WEST);
add(jspTable,BorderLayout.CENTER);
add(refresh,BorderLayout.SOUTH);

tree.addMouseListener(
new MouseAdapter()
{
public void mouseClicked(MouseEvent me)
{
doMouseClicked(me);
}
});
jtf.addActionListener(this);
refresh.addActionListener(this);
}
///////////////////////////////
public void actionPerformed(ActionEvent ev)
{
File temp=new File(jtf.getText());
DefaultMutableTreeNode newtop=createTree(temp);
if(newtop!=null)
tree=new JTree(newtop);
remove(jsp);
jsp=new JScrollPane(tree);
setVisible(false);
add(jsp,BorderLayout.WEST);
tree.addMouseListener(
new MouseAdapter()
{
public void mouseClicked(MouseEvent me)
{
doMouseClicked(me);
}
});

setVisible(true);
}
//////////////////////////////

DefaultMutableTreeNode createTree(File temp)
{
DefaultMutableTreeNode top=new DefaultMutableTreeNode(temp.getPath());
if(!(temp.exists() && temp.isDirectory()))
return top;

fillTree(top,temp.getPath());

return top;
}
//////////////////////////////
void fillTree(DefaultMutableTreeNode root, String filename)
{
File temp=new File(filename);

if(!(temp.exists() && temp.isDirectory()))
return;
//System.out.println(filename);
File[] filelist=temp.listFiles();

for(int i=0; i