OO - Intermed

Polymorphism Strong understanding of polymorphism:
  • understand downcasting and upcasting, and when to use them advisedly
  • deep understanding of overriding (with class members, using any access specifier...)
  • identify constructor invocation sequence in a complex class hierarchy
  • know what late (or dynamic) binding is, and how it works
  • describe what field hiding is
Design Principles

Know and understand the following basic OO design principles:

  • Liskov Substitution Principle
  • High Cohesion - Low Coupling
  • Open/Closed Principle
  • Composite Reuse Principle
  • Acyclic Dependencies Principle

Be able to recognize cases where they are respected or not, and recognize a principle from a definition.

Design Patterns

Know and understand the following Design Patterns:

  • Singleton
  • Factory
  • Template Method
  • Observer
  • Decorator
  • Proxy
  • Facade
  • Composite

Know their intent, a way to implement them in Java.
Be able to recognize them from a definition or from a code example.

OO Concepts Understand the following concepts:
  • encapsulation
  • responsibility-driven design
  • immutability
  • static vs regular method/attribute
  • this and super meaning/usage
  • multiple inheritance (and related problems, like common ancestor constructed twice)
  • interface
  • abstract class and method

你可能感兴趣的:(OO,Access)