&& (getFileMustExist()) && (selFile == null)) { result = showOpenDialog(parent); && (getFileMustExist()) && (selFile != null) && (selFile.isFile())
&& (getFileMustExist()) && (selFile == null)) { result = showOpenDialog(parent); && (getFileMustExist()) && (selFile != null) && (selFile.isFile())