what are abstract classes? what is overriding?
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Answer / venkateh chowdary gutlapalli
A class that contains on one or more abstract functions is
known as abstract class.
we can not instantiate abstract class directly.first we have
to create a derived class and then we can instantiate.
| Is This Answer Correct ? | 17 Yes | 2 No |
Answer / kalpana
Abstract classes cannot be used to instantiate objects;
because abstract classes are incomplete, it may contain only
definition of the properties or methods and derived classes
that inherit this implements it's properties or methods.
| Is This Answer Correct ? | 7 Yes | 0 No |
abstract Class: I find a Proper ans there.
So Posting For Overriding.
Method Overriding:
Method overriding occurs when child class declares a method
that has the same type arguments as a method declared by one
of its superclass.
Method overriding forms Run-time polymorphism.
Eg1:
Class Maloy
{
virtual void hello()
{ Console.WriteLine(“Hello from Maloy”); }
}
Class Adhikari: Maloy
{
override void hello()
{ Console.WriteLine(“Hello from Adhikari”); }
}
static void main()
{
parent objmaloy = new Adhikari();
objmaloy .hello();
}
//Output
Hello from Adhikari.
..................
Hope You Understand This.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / josephine
Abstract classes contains both abstract methods and non
abstract methods.Abstract methods must be implemented.
Overriding:
When a class is subclassed,functionalities are performed in
subclass
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / mohd.nafish
if a calss contain more than one pure virtual function
then this class called abstract class....
if a class have more then one funtion which name is same
then this type funtion call by make single object so this is
overriding
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / bunny p
A class that contains on one or more abstract functions is
known as abstract class.
| Is This Answer Correct ? | 5 Yes | 4 No |
Answer / lakki
Abstract class is a class contains one or more abstract
methods or propeties, such methods do not provide
implementation. if u wantto implement that methods then first
u hav to derive that class.
abstract classes cant be intiated, but abstract derived
classes can be inherited.
Overriding is nothing but a child class derived the method in
its parent class, method parametrs are same but logic is
different..
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / subhransu
abstract class perform as base type. it works at the root
label of class diagram.all abstract method should be define
inside the abstract class.Abstract class can not be
instanciate if we want to access the data member of the
abstract class then it should be done through it's derived
class.This concept leads to data hidng and datahing leads
to data security.
| Is This Answer Correct ? | 1 Yes | 0 No |
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