Practical 7 OOP

 PRACTICAL – 7.1

Create a program to understand and use static members and static member functions

#include <iostream>

using namespace std;

class Stat

{

    static int a;

public:

    static void set(int x)

    {

        a = x;

    }

    static int print()

    {

        return a;

    }

};

int Stat ::a;

int main()

{

    Stat s;

    s.set(4);

    cout << s.print();

    return 0;

}

PRACTICAL – 7.2

Create a class employee with suitable members and functions. Create an array of objects and demonstrate the use of the class using the main function.

#include <iostream>

#include <string>

using namespace std;

class Employee

{

    string name;

    int sel;

public:

    void set_name()

    {

        cout << "Enter Name : ";

        cin >> name;

        cout << "Enter Selary : ";

        cin >> sel;

    }

    void get_name()

    {

        cout << "Name : " << name << endl

             << "Selary : " << sel << endl;

    }

};

int main()

{

    Employee e[100];

    e[0].set_name();

    e[1].set_name();

    e[0].get_name();

    e[1].get_name();

    return 0;

}

PRACTICAL – 7.3

Create a class time with members hours and minutes. Write a member function ‘add’ which takes 2 arguments of type class time and demonstrate the use with a main program.

#include <iostream>

#include <string>

using namespace std;

class class_time

{

    int hours, minute;

    string detail;

public:

    void add(int time, string s)

    {

        minute = time % 60;

        hours = (time - minute) / 60;

        detail = s;

    }

    void getdata(string s)

    {

        cout << "Class of " << s << " for " << hours << " Hour " << minute << " minute " << endl;

    }

};

int main()

{

    class_time math;

    int time;

    string s;

    cout << "Enter time of class : ";

    cin >> time;

    cout << "Enter class Name : ";

    cin >> s;

    math.add(time, s);

    math.getdata(s);

    return 0;

}