All about polymorphism and How can I use that in C++?

click on following links
http://www.tutorialspoint.com/cplusplus/cpp_polymorphism.htm
http://www.cplusplus.com/doc/tutorial/polymorphism/

I suggest you, try to make google/ping as you friend. Most probably those search engines always give a best urls to learn. Try this google search for a sample. Apart from this, i also suggest you to go thru the below book which explains the C++ language features in a neat manner.

• C++ : The Complete Reference by Herbert Schildt