program for Object Composition and Delegation

Write a program in program notebook 

#include<iostream.h>

#include<conio.h>

class fclass

{

public:

int data;


fclass() // here is constructor declared

{

data = 0; // Data member is initialized

}


fclass(int a) // here is constructor  again declared

{

cout << "Constructor of Class fclass is calling " << endl;

data = a;   // Data member is initialized

}

};


class sclass

{

private:

int b;

fclass fobject;   //here fobject is object  for fclass


public:


sclass(int a) : fobject(a)  // Constructor of class sclass

{

b = a;     // initialized

}


void pdata() // here pdata function is used to print value

{

cout<<"Data of class SClass object is: "<<b<<endl;

cout<<"Data of class AClass object in class SClass is:"<<fobject.data;

}

};


int main()

{

sclass s(99); // Here s is created for  sclass

s.pdata();    //calling pdata member function of seconed class

getch();

return 0;

}

Output:



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