What is delegation? When would I want to use it?

Question

In OOP, a term delegation is mentioned. How is this modelled in a class? I searched on yahoo etc but got links to delegates.

Answer 1

Delegation is like inheritance except instead of class2 having copied functions and variables from class1 class2 just gets class1 to do that stuff for it and class2 focuses on doing and having the extra functions and variables you give it. One obvious advantage of this is it saves space on your computer.