OOP Concepts Part 1
A blueprint for a group of similar entities.
What is a class?
A Circle's relationship to Shape is an example of this.
What is inheritance?
+ - # are symbols for this
What are visibility modifiers?
This pattern has a notify and update method.
What is the Observer pattern?
A common mistake made when trying to use this design pattern is that a class is wrapped by another, but no functionality is reduced and the wrapping class is NOT used to match an existing interface.
What is the Façade pattern?
An entity with responsibilities.
What is an object?
A Circle has a Center is an example of this relationship.
What is aggregation or composition?
This is a pictorial representation of the relationships between objects in a design.
What is a Class Diagram?
This pattern lets classes work together that could not otherwise because of incompatible interfaces.
What is the Adapter Pattern?
A common mistake made when trying to use this design pattern is that each concrete class implements multiple algorithms that can vary independently.
What is the Strategy pattern?
A class in which some methods have no implementation.
What is an abstract class?
Keeping parts of the code separate (sometimes hidden) from other parts. With this separation, the parts that can change often are easier to change.
What is Encapsulation?
The degree of interdependence between software modules.
What is Coupling?
This design pattern ensures that each implementation must implement all of the functionality of each and every abstraction.
What is the Bridge pattern?
A common mistake made when trying to use this design pattern is that each abstraction contains information about some of the implementations.
What is a Bridge pattern?
An abstract type that is used to specify a behavior that classes must implement.
What is an interface?
A Person reads a Book is an example of this.
What is Dependency?
This pattern is often mislabeled as a façade when you are trying to map existing 3rd party functionality to an existing interface.
What is a Adapter?
This pattern delegates the responsibility of object instantiation to another one via composition.
What is the Abstract Factory Pattern?
A common mistake made when trying to use this design pattern is falsely assuming that multiple methods implemented in the base class and then overridden in the derived class successfully fulfills the requirements of this design pattern.
What is a template pattern?
A class which has implementation of all of its inherited members either from interface or abstract class.
The ability to refer to different derivations of a class in the same way but getting the behavior appropriate to the derived class.
What is Polymorphism?
This pattern is often implemented by the programming language, but is also useful to implement for your classes which easily allows the traversal of a list or collection of objects.
What is an Iterator?
This pattern allows behavior to be added to objects dynamically.
What is the Decorator Pattern?
These two patterns look and feel similar, but are distinct. One merely allows the selection of an algorithm at runtime, while the other allows the implementation of various abstractions to be varied
What are the bridge and strategy patterns?