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... Use of abstract class and abstract methods , Defining and Implementing Interfaces Runtime polymorphism using interface , Key ...

Crush your Java Final Exam with this targeted tutorial! Today, we are mastering the "Big Five" topics that students find most ...

... 1:49:17 polymorphism ( compile-time and run-time ) 1:53:17 encapsulation 2:03:01 abstraction (interfaces and abstract classes) ...