Dependency Inversion Principle

Dependency Inpervion Principle is one of the SOLID design principle. It states following two thing:

  1. High-level modules should not depend on low-level modules. Both should depend on the abstraction.
  2. Abstractions should not depend on details. Details should depend on abstractions.
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Builder Design Pattern

Builder pattern is a creational design pattern which separates the contruction process of complex objects from its representation so that same contruction process can create different representation.

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Singleton Design Pattern

Singleton pattern is a creational software design pattern that restricts the instantiation of a class to one “single” instance. This is useful when exactly one object is needed to coordinate actions across the system. It also provides a global endpoint to access the single instance.

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Factory Method Design Pattern

Factory Method design pattern is a creational pattern which defines an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.

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Most Used Git Commands

* Installing git
$ sudo apt install git-all // Use this command if you’re on a Debian-based distribution, such as Ubuntu. For other operating system follow https://git-scm.com/book/en/v2/Getting-Started-Installing-Git
$ git --version // check version
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