Override and polymorphism

Question

my friends what is tthe different between override and polymorphism?

Answer 1

Polymorphism is a concept,which can be achieved using overriding.
Every overriding is a type of polymorphism,but every type of polymorphism is NOT overriding.
Hence polymorphism is a broader concept(contains overloading as well) than overriding.

Same as an insect and cockroach.
insect is broad category

Answer 2

When your class extends an other you can OVERRIDE parent methods and create your implementation. POLYMORPHISM makes it possible that the right implementation will be used during runtime.

Answer 3

thinks for your answer.