Practical 6 OOP

 PRACTICAL – 6.1

Write  a  C++  program  to  implement  function  overloading  in  order  to  compute  power(m,n)where

(1)m is double and n is int

(2)m and n are int.

#include <iostream>

using namespace std;

class Power

{

public:

    void Pow(double a, int b)

    {

        double ans = 1;

        for (int i = 1; i <= b; i++)

        {

            ans = ans * a;

        }

        cout << a << " Power " << b << " is " << ans << endl;

    }

    void Pow(int a, int b)

    {

        double ans = 1;

        for (int i = 1; i <= b; i++)

        {

            ans = ans * a;

        }

        cout << a << " Power " << b << " is " << ans << endl;

    }

};

int main()

{

    Power r;

    r.Pow(2.5, 3);

    r.Pow(2, 3);

    return 0;

}

PRACTICAL –  6.2

Create a function called reverse () that takes two parameters. The first parameter, called str is  a  pointer  to  a  string  that  will  be  reversed  upon  return  from  the  function. The  second parameter is called count, and it specifies how many characters of str to reverse. Give count a default value that, when present, tells reverse () to reverse the entire string.

#include <iostream>

#include <string>

using namespace std;

class Str

{

public:

    void string_ret(string &s, int a)

    {

        a -= 1;

        for (int i = 0; i < a; i++)

        {

            char c;

            c = s[a];

            s[a] = s[i];

            s[i] = c;

            a--;

        }

    }

};

int main()

{

    Str r;

    string j;

    int num;

    cout << "Enter String : ";

    cin >> j;

    cout << "Enter Term Which You want to reverse : ";

    cin >> num;

    if (num <= j.length())

    {

        r.string_ret(j, num);

    }

    else

    {

        cout << "Enter Valid Input" << endl;

    }

    cout << j << endl;

    return 0;

}

PRACTICAL – 6.3

Write  a  program  to  demonstrate  the  use  of  arrays  within  a  class.Create  and  manage  an inventory system

#include <iostream>

#include <string>

using namespace std;

class Inventory

{

    string item[100];

    int cost[100];

public:

    void setdata(int product_num)

    {

        cout << "Enter Product name : ";

        cin >> item[product_num];

        cout << "Enter Cost : ";

        cin >> cost[product_num];

    }

    void getdata(int product_num)

    {

        cout << "Enter Product name : " << item[product_num] << endl;

        cout << "Enter Cost : " << cost[product_num] << endl;

    }

};

int main()

{

    Inventory r;

    r.setdata(1);

    r.getdata(1);

    return 0;

}