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Explain Overloading

Explain Member Function Overloading

member Function Overloading with default Args.

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Another powerful and useful concept of object

oriented programming is overloading

which allows operation with the same name but

different semantics and different ways of

implementation to be invoked for object of differnt

types.

For instance,binary operation can be overloaded for

complex number arrays,set or list

Overloading

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C++ enable two or more functions with the samename but with different types of arguments or different

sequence of arguments or different number of arguments. It is

also called as FunctionPolymorphism

Function Overloading

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Two or more functions with the same

name but with different types of arguments

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MEMBER FUNCTION

OVERLOADING#include#include

void display(char,int);

void display(int,int);void main()

{

clrscr();

display('*',10);display(10,5);

getch();

}

void display(char c, int n)

{for (;n>0;n--)

cout

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Two or more functions with the same

name but with different Number of arguments

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// Write a C++ program to find

the area of the triangle using

Memeber Function Overloading

#include

class rectangle

{

private :

int length,breadth,area;

public :void getdata() {

coutlength;

cout

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Two or more functions with the same

name but with different Sequence of arguments

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#include

#include

void line();

void line(char);

void line(char,int);void main()

{

int no_of_time;

char c;

clrscr();coutno_of_time;

coutc;

line();

line(c);

line(c,no_of_time);

getch();

}

void line()

{

for(int i=0;i

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The default values are given in the

function prototype declaration .whenever a call

is made to the function without specifying on

arguments the program will automatically

Assign values to the parameter form the

default function prototype declaration

Member Function Overloading with

Default Arguments

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Member function Overloading with default arguments

#include

#include

int sum(int x=10,int y=20,int z=30);void main()

{

clrscr();

cout

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Difference between Overloading and

Overriding

Overloading

Overriding

Allows a function to be given more

than one definition

The types of arguments or numberof arguments which the function

takes determines which definition

will be used

It is the ability to change the

definition of the base class method

by writing a code for them in the

sub-class of an inheritance

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Function Overloading is the ability to write more than on

function with the same name with different number ,type and

sequence of arguments. It is also referred as Function

polymorphism

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