Here you can find the source of isDriveTraversable(File drive)
public static boolean isDriveTraversable(File drive)
//package com.java2s; /****************************************************************************** * __ * * <-----/@@\-----> * * <-< < \\// > >-> * * <-<-\ __ /->-> * * Data / \ Crow * * ^ ^ * * (c) 2003 The Data Crow team * * info@datacrow.net * * * * * * This library is free software; you can redistribute it and/or * * modify it under the terms of the GNU Lesser General Public * * License as published by the Free Software Foundation; either * * version 2.1 of the License, or (at your option) any later version. * * * * This library is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * * Lesser General Public License for more details. * * * * You should have received a copy of the GNU Lesser General Public * * License along with this library; if not, write to the Free Software * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * ******************************************************************************/ import java.io.File; import javax.swing.JFileChooser; import javax.swing.filechooser.FileSystemView; public class Main { private static final FileSystemView fsv = new JFileChooser().getFileSystemView(); public static boolean isDriveTraversable(File drive) { return fsv.isTraversable(drive); }// w ww .j av a 2 s . c o m }