HttpServlet class in abstract class

HttpServlet class is an abstract class. but we dont override all the methods why?
[88 byte] By [Rohith_Panickera] at [2007-11-27 6:48:57]
# 1
HttpServlet class is an abstract class but the methods in it are concrete . so no need to override all the methods.
Rohith_Panickera at 2007-7-12 18:22:28 > top of Java-index,Solaris Operating System,Solaris 10 Features...
# 2
Perhaps it was designed so that vendors can inherit and add additional functionality but of course, Sun implemented the fundamental logic to support the HTTP standards
tayboonla at 2007-7-12 18:22:28 > top of Java-index,Solaris Operating System,Solaris 10 Features...