Method Overriding vs Overloading

 

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..)
Binding	Dynamic Binding (Runtime)	Static Binding (Compile Time)