CPP:-
1. static member functions can access only the static data members of the class.
2. the two types of polymorphism are Run Time and Compile Time.
3. A file stream is an extension of the Console stream.
4. the Standard Template Library is a library of Container Class template.
5. Compile Time Polymorphism (Called as Early Binding or Overloading or static binding)
        Run Time Polymorphism (Called as Late Binding or Overriding or dynamic binding)
   run time polymorphism is preferable or chosen one than compile time polymorphism.
6. with private inheritance , public and protected members of the base class becomes the private members of the derived class.
7. templates are the blue prints of the function that can be applied to different data type.