object oriented programming

2. Pointers to functions
 Used in C++ for dynamic binding and event based
applications.
 The pointer to function is known as callback function.
 Using function pointers we can allow C++ program to
select a function dynamically at runtime.
 A function can be passed as argument to another function.
 Datatype(*function name)();
 Ex: int (*numfunction( int x));
 Example
 Example2

3.  Pointers to objects
 Array of pointers to Objects

4. Pointers to derived class Objects
 Example1
 Example 2
 Example3