2010年9月16日
Classes, Superclasses, and Subclasses
class ManagerextendsEmployee{addedmethodsandfields}The keyword extends indicates that you are making a new class that derives from an existing class. The existing class is called the superclass, base ... Read More
posted @ 2010-09-16 22:55 露初晞 Views(230) Comments(0) Diggs(0)