code: public static void mkdirs(File f)
  	{
  		try
  		{
  			Files.createDirectories(f.toPath());
  		}
  		catch (IOException e)
  		{
  			throw new RuntimeException("Could not create directory: " + e.getMessage(), e);
  		}
  	}
docs: Create a directory and any necessary parent directories, throwing a {@link RuntimeException} on failure
  
  @param f
  the directory to create
  
  @throws RuntimeException
  wrapping the inner IOException if the filesystem cannot create a directory