Difference between Interface, abstract class, sealed class, static class and partial class in C#? [closed]

Answer 1

• Interface: method definitions only

• Abstract class: some method implementations, some methods abstract (method definition only)

• Sealed class: A class from which you may not inherit

• Static class: a class with only static methods (no instances exist, all methods may be called without an instance)

• Partial class: A class that is defined in 2 or more separate class definitions in different modules.

Yes, they are all available in both C# and VB, although VB uses different keywords in some cases.