Is a base class sufficient, or is it ALWAYS worth creating an interface also?
15691
Interface vs Base class
121498
Using HTML for interface?
50083
Cast interface to its concrete implementation object or vice versa?
131669
Why Would I Ever Need to Use C# Nested Classes
27908
Can we instantiate an abstract class?
5983
Why Java needs Serializable interface?
110761
Class with single method -- best approach?
85960
Abstract class vs Interface in Java
126102
Declare IDisposable for the class or interface?
69939
Implement an interface and override methods in Java?
77565
Should we @Override an interface's method implementation?
143178
Java abstract interface
75561
Comment the interface, implementation or both?
42596
Why would a static nested interface be used in Java?
110878
What is the main advantage of making a class abstract
69594
What is the difference between an interface and abstract class?
100925
Does an interface by default extend Object?