10. OOP (Namespace)

Part 1: Intro https://www.youtube.com/watch?v=Fj_QUpYgdWg Part 2: Class dan Object https://www.youtube.com/watch?v=FUbznNz35AU Part 3: Inheritance https://www.youtube.com/watch?v=vny4P-xbDWg Part 4: Access Modifier https://www.youtube.com/watch?v=Ah_HG9OZLaM Part 5: Encapsulation https://www.youtube.com/watch?v=cPEMWAAL52Q Part 6: Interface dan Abstract Class https://www.youtube.com/watch?v=tpjJ5pS_mMo Part 7: Polymorphism https://www.youtube.com/watch?v=cVQZVZrg1pU Part 8: Constructor Dan Destructor, https://www.youtube.com/watch?v=yXOKhn3dA5M Part 9: Magic Method https://www.youtube.com/watch?v=U8uE9Om6sRw