Design Patterns

Question 1

Abstract Factory

Answer 1

Provide an interface for creating families of related or dependent objects without specifying their concrete classes.

Question 2

Builder

Answer 2

Separate the construction of a complex object from its representation so that the same construction process can create different representations.

Question 3

Factory Method

Answer 3

Define an interface for creating an object, but let subclasses define which class to instantiate. Factory Method lets a class defer instantiation to subclasses.

Question 4

Prototype

Answer 4

Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype.

Question 5

Singleton

Answer 5

Ensure a class only has one instance, and provide a global point of access to it.