Hi All, I want to know when to use sealed class. I am working in a project where database related classes are sealed. Now I know that since these classes are sealed we cannot inherit. But what is the benifit of making database related cl ...

[code]public class NullableDateTimePicker : System.Windows.Forms.DateTimePicker { // Default Constructor public NullableDateTimePicker() : base() { base.Format = DateTimePickerFormat.Custom; NullValue = " ...

Please tell me what are exactly abstraction and encapsulation in OOPs and differences between these. I have seen different opinions in different books/websites for abstarction & encapsulation. Thank you.