Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / gaurav agrawal
The class is one of the two basic encapsulation constructs
in C# (the other being the struct). Every executable
statement must be placed inside a class or struct. Classes
define reference types that are the basic building blocks of
C# programs, and they are the architectural blueprint for
the "objects" in OOP.
- Types of classes:-
1. Abstract: An instance of the class cannot be created.
Usually this means the class is intended to serve as a base
class. Abstract methods must be overridden in a derived
class. If any method of a class is abstract, the entire
class must be declared as abstract.
2. Sealed: The class cannot serve as a base class for
another class (it can't be derived from). A class cannot be
both abstract and sealed. Sealed methods are methods that
override an inherited virtual method having the same
signature. When a method is sealed, it cannot be overridden
in a derived class. Sealed classes are used to restrict the
inheritance feature of object oriented programming. Once a
class is defined as sealed class, this class cannot be
inherited.
3. New: Used only with nested classes. "New" indicates that
the class hides an inherited member of the same name.
assembly.
- Constructor Modifiers :-
A class defines data members, methods and nested types. A
constructor is a special method that is normally used to
initialize the data members of a class, and its name is
always the same as the name of the class. Constructors have
no return value, and any number of constructors can be
defined within a class. If no constructor is defined, the C#
compiler provides a default constructor having no parameters.
- Methods:-
Methods are always defined within the bounds of a class or
struct. Methods can be instance (called as an instance of
the type within which the method is defined) or static,
where the method is associated with the type itself. Methods
can be declared as virtual, abstract, or sealed. Methods can
be overloaded, overridden and hidden.
Virtual methods can be overridden by a derived class using
the override keyword.
Reference :
http://intquesans.blogspot.com/2011/05/types-of-classes.html
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Is it possible to edit data in Repeater control?
What are the data providers in ADO.NET framework?
Explain how to copy the contents from one table to another table and how to delete the source table in ado.net?
What is ado.net components?
What is maximum pool size in ado.net connection string?
What is a datagridview?
How to store data in memory?
What are dataproviders?
What are the benefits of using ado.net?
What is typed dataset ?
What is the difference between the clone() and copy() methods of the dataset class?
What is adodb dll?
What is XML serialization
How would you connect to a database by using .NET?
How is entity framework different from ado.net?
