docs: protected boolean validate(String text)
  	{
  		try
  		{
  			String[] strings = text.split(",");
  			for (int i = 0; i < strings.length; i++)
  			{
  				Integer.parseInt(strings[i].trim());
  			}
  			return true;
  		}
  		catch (NumberFormatException e)
  		{
  			return false;
  		}
  	}