OverRiding funda

[mridul makkar]

I had studied this topic many times but i used to do mistakes in this topic while my Mock exams.can any one give me full details about this topic. Also The Inner class funda also disturbs me alot.

Thanks in Advance
Mridul.

[Mathangi Shankar]

Hi,

Overiding occurs during inheritance that is when you extend a class you can implement a method which has the same method name,parameters and the return type as the super class.This is called overriding a method.

This applies to interfaces also.

For more information you can look into Khalid Mughal for SCJP.

[Nikhilesh Fonseca]

Hey
Inner Class is a class which you declare within any other class
beacuse of the fact that it is Inner(within)
1.It is created each time an instance of its outer class is created.
2.Because of 1. it cannot have static members as we would not be able to create multiple instances of our outer class(STATIC).
3.Since it is Inner it can acces private memebers of the outer class
directly.
There are various drawbacks to using inner classes Size memory.. footprint etc.
These are just the basics aneeway there is lot more that goes into it.
Cheers