/** starts a JavaDoc comment, first line is summary */ ends
@link classname – link to the Java docs for a class
@param paramname description – describe a parameter of a method or constructor only
@return description – what does this method return
@see classname – see also some other class
@author name – can have more than one, for classes and interfaces only
@version number – set a version number for classes only
@exception – this throws an exception you can link to the docs for
@since – what version of Java has this been available since
@serial – serial number
@deprecated – don't use deprecated stuff