Define Restriction, Specialization, Overriding?

Define Restriction, Specialization, Overriding

Restriction is a process in which derived class inherits base class characteristics and then applies some restriction on base class method while Overriding concept is related with inheritance. In overriding child class gives a new implementation to a derived method by either extending its behavior or restricting its behavior. To further clear your concept please consult lecture no 4 as all these concepts are discussed there is great details.