C++ program using the concept of Constructor, Destructor and Constructor overloading

Aim:

To show the working of constructor, destructor and constructor overloading.

Algorithm:

Step 1: Start

Step 2: Declare a class num with data members.

Step 3: Define constructors and destructor in the class num.

Step 4: Create objects o1,o2 and o3 for the class num.

Step 5: Stop

Program code:

#include<iostream.h>

#include<conio.h>

class num

{

int a,b,c,d,e,f;

public:

num()

{

cout<<"Constructor Called\n";

}

num(int a,int b)

{

cout<<"\n"<<a<<"+"<<b<<"+"<<e<<"="<<c+d+e<<"\n";

}

~num()

{

cout<<"Distructor Called\n";

}

};

void main()

{

clrscre();

num 01;

{

num 02(5,7);

}

{

num o3(5,9,1);

}

getch();

}

Output:

Enter radius : 5

Area of circle = 78.5

Enter length an breadth : 3 4

Area of rectangle = 12