overriding

자주 헷갈릴 수 있는 개념이라 표로 정리해둔다. Element Overriding Overloading Declaration Sub Class equivalent Class Relationship Parent - Child Class (Inheritance) equivalent Goal same method name but specially optimized at sub class same method name and Polymorphism(ex. different parameter type -> different return type) Condition Same Parameter type, the number of parameter Different Parameter (number, type..) Bi..