-
Usage of Abstract class and Interfaces
In Real time when we go for Abstract classes and when we go for Interfaces
Sarje
- Aug 13th, 2009
If you want to create only abstract methods in a class then use interface and if you want to create some of the methods as abstract and some as concrete then use abstract class.
dyy123
- Nov 14th, 2008
When you don't want to expose the implementation of the methods then you can use the Interface. Abstract class is will have some methods implemented and some unimplemented.
-
why should we extend Exception instead of Throwable?
We usually extend Exception instead of Throwable. Why? In what situations we extend Throwable.Could anybody give the answer in detail. Thanks in advance.
shweta.suryanarayanan
- Oct 1st, 2008
By extending Throwable, you are giving hook for RuntimeException and programmers normally do not catch unchecked exceptions. However, if you have an app server and want to en...
rariedel
- May 27th, 2008
Extending the Exception class (a descendant of Throwable) instead of extending Throwable itself is a programming convention, not a requirement.Like most conventions, following the convention lends consistency to the end result.
