This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori 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.