private boolean validateFolder(File defaultFingerprintFolder){
  return defaultFingerprintFolder.exists() && defaultFingerprintFolder.canRead() && defaultFingerprintFolder.canWrite();
}

private boolean validateFolder ( File defaultFingerprintFolder ) { return defaultFingerprintFolder . exists ( ) && defaultFingerprintFolder . canRead ( ) && defaultFingerprintFolder . canWrite ( ) ; }
simple method to validate a folder
