This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Difference between abstract class and interface?.. I want to know the actual difference between abstract class and interface in real-time applications.I want to know when interfaces and abstract classes are used in real-time purposes.