question: public static String stripFilenameExtension ( String path ) { if ( path == null ) { return null ; } int extIndex = path . lastIndexOf ( EXTENSION_SEPARATOR ) ; if ( extIndex == - 1 ) { return path ; } int folderIndex = path . lastIndexOf ( FOLDER_SEPARATOR ) ; if ( folderIndex > extIndex ) { return path ; } return path . substring ( 0 , extIndex ) ; }
target:  Strip the filename extension from the given path, e.g. "mypath/myfile.txt" -> "mypath/myfile".