code: public static void copy(File sourceFile, File targetFile) throws FileAlreadyExistsException, IOException {
          copy(sourceFile, targetFile, false);
      }
docs: Copy the source file to the target file.
  @param sourceFile The source file to copy from
  @param targetFile The target file to copy to
  @throws FileAlreadyExistsException Thrown if the target file already
  exists.  This exception is a subclass of IOException, so catching
  an IOException is enough if you don't care about this specific reason.
  @throws IOException Thrown if an error during the copy