Interface and Abstract class, inheritance, abstraction with
examples. Polymorphism (difference betn overloading and
overriding
Answer Posted / alb.shah
Abstract class:
Abstract class act as base class, not instantiable, no
implementaiotn in base class but allow implementaiotn in
derived class with overide method, method must be abstract.
specially used in inheritance.
Interface:
Interface class dont have constructor, destructor,
always public modifier set to true
no implementation
cant used multiple inheritance instead of this we use
multiple interface
Inheritance :
In Inheritance we can use one class property into another
class..
using System;
class sample
{
public void display()
{
Console.WriteLine("C#");
}
}
class sample1:sample
//(Inheriting the property of class sample in class sample1)
{
public void disp()
{
Console.WriteLine("C++");
}
}
class Test
{
public static void Main()
{
sample1 sm=new sample1(); //creating a object of sample1
sm.display(); //accessing function of sample class
sm.disp();
}
Abstraction :
"Abstraction" simply means showing only those details to
the user which are of use to them , and hiding up the
unnecessary
Abstraction is the process or result of generalization by
reducing the information content of a concept or an
observable phenomenon
polimorphism :
polimorphism is the one of the oops features, allows one
object to appear in different form by changing the type.
Two types:
1- Static eg:method overloading
2- Dynamic eg:method overriding
difference betn overloading and overriding :
OverLoading means one name many forms .its functionallty
changes corresponding to the objects
Overriding means its funcationality can be overrided.these
can be done by using by using two keywords
1.overrideable
2.overrides
overriding take place with in the in_heritance. it is not
possiable with in the class.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
Which is the parent class of the ASP.NET server control?
what are the web form events available in asp.net?
Explain the differences between managed and unmanaged code?
What is a user developed application?
what are the security certificates used in webservices?
Can the dictionary object be created in client?s scope ?
Is asp.net and .net are same or different?
A web service can only be written in .net? State whether true or false.
How will you load dynamic assembly? How will create assesblies at run time?
How to send a DataReader as a parameter to a remote client ?
Where is the view state data stored?
How many types of session in ASP.NET
What is server infrastructure & server components?
What are the main requirements for caching?
How to prevent client side validation from the ASP.NET validation controls?