import java.io.*;
import java.util.*;
import javax.swing.*;

/**
 * @version 1.0 2002-11-23
 * @author Takashi KOBAYASHI
 */
public class memo10ex2 {
	public static void main( String[] args ) {
		memo10ex2 ex2 = new memo10ex2();
	}

	public memo10ex2() {
		File root = new File("./root");
		Hashtable ret = new Hashtable();

		if( root.isDirectory() )
			ret.put( root, getChildren( root ) );
		else
			ret.put( root, root );
		JTree tree = new JTree( ret );

		JFrame frame = new JFrame( "memo10ex2" );
		frame.getContentPane().add( tree );

		frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
		frame.pack();
		frame.setVisible( true );
	}

	public Hashtable getChildren( File parent ) {
		File[] dirs = parent.listFiles();
		Hashtable ret = new Hashtable();
		for( int i = 0; i < dirs.length; i++ ) {
			if( dirs[i].isDirectory() )
				ret.put( dirs[i], getChildren( dirs[i] ) );
			else
				ret.put( dirs[i], dirs[i] );
		}
		return ret;
	}
}