Saturday, 23 March 2013

What is Design Patterns

What are the Design Patterns

Design Patterns are the ways to solve the problems which we getting daily while doing our task.

Design Patterns are the definite solutions for fixed problems

Design Patterns provide the ways how to solves the problems, how to handle this problem.

Object-oriented design patterns typically show relationships and interactions between classes or objects, without specifying the final application classes or objects that are involved.

Patterns that imply object-orientation or more generally mutable state, are not as applicable in functional programming languages.

Benefits of Design Patterns

1- Speed Up Development Work- Design patterns can speed up the development process by providing tested, proven development paradigms

2- Handle Major Problems - Reusing design patterns helps to prevent subtle issues that can cause major problems, and it also improves code readability for coders and architects who are familiar with the patterns.

Design Pattern Types

[Type - Creational]
Singleton Design Pattern

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