Creational Design Patterns

Question 1

Singleton

Answer 1

Ensure that only one instance of a class is created and Provide a global access point to the object.

Question 2

Factory

Answer 2

Creates objects without exposing the instantiation logic to the client and Refers to the newly created object through a common interface.

Question 3

Factory Method

Answer 3

Defines an interface for creating objects, but let subclasses to decide which class to instantiate and Refers to the newly created object through a common interface.

Question 4

Abstract Factory

Answer 4

Offers the interface for creating a family of related objects, without explicitly specifying their classes.

Question 5

Builder

Answer 5

Defines an instance for creating an object but letting subclasses decide which class to instantiate and Allows a finer control over the construction process.

Question 6

Prototype

Answer 6

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

Question 7

Object Pool

Answer 7

Reuses and shares objects that are expensive to create