What is difference b/w child class and parent class

[saneha]

What is difference b/w child class and parent class

or tell me in detail with examplse or digrams about dereived class and base class

[Vuhelper]

Also called an "is a" relationship, because the child class is a type of the parent class. Generalization is the basic type of relationship used to define reusable elements in the class diagram. Literally, the child classes "inherit" the common functionality defined.
hope it helps you ........