2 docs tagged with "polymorphism"

Martin revisits the three pillars of OOP — encapsulation, inheritance, and polymorphism — and argues that OO's true architectural gift is safe, convenient polymorphism that enables plugin architecture and dependency inversion.

Deep dive into Java inheritance, abstract classes, polymorphism, method overriding rules, final keyword, immutable class design, and Object methods — with focus on the subtle OCP exam traps around field hiding and initialization order.