CS202   4- ‹#›
nThis cost is not as bad as it first seems. Many compilers do this more efficiently.
nSecond, to “simulate” dynamic binding, the application would be implemented significantly differently. Each derived class would have to define a value to represent its type so that the application could query the object at run time to determine what type it was pointing to. Then, the application would have to downcast the pointer from an account object to the correct type in order to access the correct derived class member function. This would have to be done each time a derived class member function needed to be accessed.
Dynamic Binding Mechanism