Importance of a design pattern?

Question

I am learning C++ I don't know much about this stuff except the fact that programming design pattern is neccesary when actually working in large projects.I hope its correct to some extent.

Is this common to all object oriented languages or do I need to look specifically into C++ design patterns.

Also How does it helps you.Is this realy important to learn as a C++ programmer.

Please suggest

Answer 1

Design patterns are often misunderstood. They are really a way for experienced users to have shorthand for describing common situations. You don't need to worry about them too much while you are learning C++.

Answer 2

You will hear discording opinions about design patterns, in the programming community at large.

In my opinion, it is sure that there are abstractions that patterns encapsulate that are really useful (factory, singleton, delegate, etc.). I use patterns a lot, but I myself am sometime puzzled by the apparent lack of depth or level of insight that you get by reading a pattern description. This is also in tune with the proliferation of design patterns that specialize for any kind of things.

When the design hey are useful, they are a very good means of communication and certainly they guide you through the process of designing or defining the architecture of your app. They are useful both for small project and for large ones, and they can be applied at different granularity levels.

Patters are a generic concept and all programming languages support them. Anyway, if you work in C++, a book focusing on it is best, because you will get the pattern adapted to the characteristics of the language.

In my opinion, the really fundamental book about design patterns are:

GoF, Design Patterns: Elements of Reusable Object-Oriented Software

VV.AA., Pattern-Oriented Software Architecture Volume 1: A System of Patterns

VV.AA., Pattern-Oriented Software Architecture Volume 2: Patterns for Concurrent and Networked Objects