10 Object-Oriented Programming: Polymorphism Objectives To understand (Java web server)
10 Object-Oriented Programming: Polymorphism Objectives To understand the concept of polymorphism. To understand how polymorphism makes systems extensible and maintainable. To understand the distinction between abstract classes and concrete classes. To learn how to create abstract classes, interfaces and delegates. One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the darkness bind them. John Ronald Reuel Tolkien, The Fellowship of the Ring General propositions do not decide concrete cases. Oliver Wendell Holmes A philosopher of imposing stature doesn t think in a vacuum. Even his most abstract ideas are, to some extent, conditioned by what is or is not known in the time when he lives. Alfred North Whitehead
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