object pointer « Class « C++

1.Use object pointer to reference virtual method
2.Use & to get object address
3.Call virtual function through object pointer
4.Change the object pointer behaviour
5.Using an array of class objects
6.Use dynamic_cast to convert object pointer to its subclass
7.Need reinterpret cast to perform pointer conversion from unrelated classes
8.Need reinterpret_cast to go from pointer to int and from int to pointer
9.Need reinterpret cast to perform reference conversion from unrelated classes -- static_cast doesn't work

10.Declare object pointer
11.pointers to base class
12.Demonstrating the class member access operators . and ->