Brandon Savage has posted the answers to some questions that were raised by a previous post of his on object-oriented development and some best practices. In this new post, he answers the questions:

• "Often times when a developer gives each object only one responsibility, they tightly couple objects together." Can you explain?
• I do not know about dependency injection – do you have any links that do not require subscription?
• Can you please explain 'one object – one job' concept?

Each question is answered, sometimes with code included, to help resolve any confusion about how to correct use object oriented practices in your applications.