if (dir.charAt(0) == '/') dir = dir.substring(0);
if (dir.charAt(0) == '/') { if (dir.length() == 1) return true; dir = dir.substring(1); }
		public boolean containsDir(String dir) {			if (dir == null)				return false;			if (dir.length() == 0)				return true;			if (dir.charAt(0) == '/')				dir = dir.substring(0);			if (dir.length() > 0 && dir.charAt(dir.length() - 1) != '/')				dir = dir + '/';			Enumeration entries = zipFile.entries();			ZipEntry zipEntry;			String entryPath;			while (entries.hasMoreElements()) {				zipEntry = (ZipEntry) entries.nextElement();				entryPath = zipEntry.getName();				if (entryPath.startsWith(dir)) {					return true;				}			}			return false;		}