Answer / venkatreddy

overriding:method name and signature are must be same.


overloading: functionality that enables you to define tow or more methods with the same name but with different signatures within the class the methods that share the same name ,but have different signature are called overloaded methods.

Answer / neeraj sahu

Overloading : It is a feature of OOPs , by that we can
achieve run time polymorphism. To declare it we need the
same method name but different argument or different types
of argument.
Overriding : It is a feature of OOPs, By that we can achieve
compile time polymorphism.To declare it we need the same
method name and same types and same number of argument but
in different class.

Answer / aparna murthy

overloading is the ability to define several methods with
the same name ,provided each method has a different signature.

example:--

class shape
{
public void area(double r)
{
console.writeline("Area of circle :"+(3.14*r*r));
}
public void area(double l,double b)
{
console.writeline("Area of rectangle :"+(l*b));
}
public void area(int b,int h)
{
console.writeline("Area of rectangle :"+(0.5*b*h));
}
}
class program
{
static void main(string[]args)
{
shape s=new shape()
s.area(7,6)
s.area(22,11);
s.area(12,20);
console.read();
}
}

try this example.....

signature of a method is the datatype of the
parameters,number of parameters and the sequence in which
they are passed to the function .

overriding:---
In method overriding method have same names same signatures
same return types but in different scopes(classes) in
hierarchy .c# uses virtual and override keywords to define
method overriding .Method overriding enables object to
resolve method invocation at runtime.we call it late binding
behavior of object.
1.An override declaration cannot change the accesibility of
vitual method .Both the override method and the virtual
method must have the same access level modifier.
2.Methods which are to be overriden in the subsequent
derived class are made virtual or abstract in base class.

example:--

class employee
{
public virtual double calculatesalary()
{
return basic+hra+da;
}
}
class manager:employee
{
public override double calculatesalary()
{
return basic+hra+da+allowances;
}
}
static void main(string[] args)
{
employee mgr=new manager();
double salary=mgr.calculatesalary();
console.writeline(salary);
console.readline();

}

Answer / veena

overloading:-
-------------- function name same and parameters in the functions are different
class function
{
public string find_big(int a, int b)
{
//source code
}
public string find_big(float a, float b)
{
//source code
}
function overridding:-
------------------------in this function name same and the difference is inherits the 2nd class(derived class) from 1st class(base class)and
use the virtual to base class and override to derived class
virtual:-
----------
if we use virtual then the function calls once. it's c++ style
eg:-
class one
{
public virtual void display()
{
System.Console.WriteLine("one:display");
}
}
class two : one
{
public override void display()
{
System.Console.WriteLine("two:display");
}
}

Answer / mercy s

Method Overloading: It is the compile time polymorphism.
It has same method name but different parameters with in the
class

Method Overriding: It is the run time polymorphism. It has
same method name and same parameters but with in the name
space.

Answer / dhaval soni

Hi, friend My Name is Dhaval Soni
Thanks for giving me a chance for writing.
bye

Answer / jaya v. parmar

overloading:- Method name are same but argument are different.

overriding:- method,return type,argument are same but derived
class are different.

Answer / m.usama

Overloading:

1.Methods having same name with different number of
parameters or different data type with same number of
parameter..
2. It is possible that overloading in inheritance..

Overriding:

1.The method in the derived class the has the
same name and same parameters in the base class and it
changes the behavior or functionality of the method in the
derived class,with overriding single reference of method is
created in memory of override function ..
2. Must be public.
3. possible in inheritance.

Answer / d

cv

Answer / m.j

overloading:
argument list must diff.
return type can b dif.

overridding:
args list same

Can you please explain the difference between dispose and finalize()?

0 Answers  

What is branching logic control in VB.NET?

0 Answers  

How to run a dos command in vb.net?

0 Answers  

What are Major Feature of VB.NET Over C#.NET

9 Answers   Wipro,

Can you please explain the difference between system.string and system.stringbuilder classes?

0 Answers  

Explain about globalization?

0 Answers  

1234 123 12 1 how to design above pic in vb.net?

2 Answers   ABC,

what are the advantage in vb.net and different between vb and vb.net

6 Answers   Data Entry Operator, Infosys, TCS, Zansa,

How to view an assembly?

0 Answers  

hello friends, I have created a animated button in VB.NET. As its dll file coding can be viewed and also copied to some other location. So my question is how can I protect the Dll file of the animated button so that noone can access it. Any idea about this???????? Thanks Rekha

3 Answers  

Explain global assembly cache (gac)?

0 Answers  

Explain convert.tostrin?

0 Answers