Practical 3 OOP

PRACTICAL – 3.1

Constructor to allocate memory dynamically and read value.

#include <iostream>

using namespace std;

class Rahi

{

    int num1;

public:

    Print(int x)

    {

        num1 = x;

    }

    void getdata()

    {

        cout << num1 << endl;

    }

};

int main()

{

    int i;

    cout << "Enter the value of a : ";

    cin >> i;

    Rahi r(i);

    r.getdata();

    return 0;

}

Practical 3.2 Display () function to display the string

#include <iostream>

#include <string>

using namespace std;

class String

{

    string s = " Kitzu ";

public:

    void Display()

    {

        cout << s;

    }

};

int main()

{

    String r;

    r.Display();

    return 0;

}

Practical 3.3 Destructor function to free allocated memory.

#include <iostream>

using namespace std;

class Box{

    public:

    Box(){

        cout<<"Contructor Data"<<endl;

    }

    ~Box(){

        cout<<"Destuct data"<<endl;

    }

};

int main(){

    {

    Box b;

    }

    cout<<"Program is End !!";

    return 0;

}