Practical 11 OOP

 PRACTICAL – 11.1

Write a program to convert an object of one class to another class..

#include <iostream>

using namespace std;

class Oneclass

{

    int a;

public:

    int transfer_data()

    {

        return a;

    }

    void getdata()

    {

        cout << "age is " << a << endl;

    }

    Oneclass(int add)

    {

        a = add;

    }

};

class Secondclass

{

    int a;

public:

    void operator=(Oneclass &obj1)

    {

        a = obj1.transfer_data();

    }

    void getdata()

    {

        cout << "age is " << a << endl;

    }

};

int main()

{

    Oneclass r(10);

    Secondclass j;

    j = r;

    j.getdata();

    r.getdata();

    return 0;

}

PRACTICAL – 11.2

Design a class Polar which describes a point in the plane using polar coordinates radius and angle. Use overloaded + operator to add two polar objects.

#include <iostream>

using namespace std;

class Point

{

    int radius, angle;

public:

    Point operator+(Point &one)

    {

        Point temp;

        temp.radius = radius + one.radius;

        temp.angle = angle + one.angle;

        return temp;

    }

    void getdata()

    {

        cout << "Point is " << radius << " " << angle << "deg." << endl;

    }

    void setdata()

    {

        cin >> radius;

        cin >> angle;

    }

};

int main()

{

    Point p1, p2, p3;

    p1.setdata();

    p2.setdata();

    p3 = p1 + p2;

    p1.getdata();

    p2.getdata();

    p3.getdata();

    return 0;

}

PRACTICAL – 11.3

Define  two  classes  Polar  and  Rectangle  to  represent  points  in  the  polar  and  rectangular systems. Use conversion routines to convert from one system to the other.

#include <iostream>

#include <math.h>

using namespace std;

class Regular;

class Polar;

class Regular

{

public:

    int r, theta;

    Regular(int num1, int num2)

    {

        r = num1;

        theta = num2;

    }

    Regular() {}

    void getdata()

    {

        cout << "Regular Form is " << r << " < " << theta << endl;

    }

};

class Polar

{

public:

    int x, y;

    Polar(int num1, int num2)

    {

        x = num1;

        y = num2;

    }

    Polar() {}

    void getdata()

    {

        cout << "Ploar Form is (" << x << "," << y << ")" << endl;

    }

    void operator=(Regular &obj1)

    {

        x = obj1.r * cos(obj1.theta);

        y = obj1.r * sin(obj1.theta);

    }

};

int main()

{

    Regular r(2, 30);

    Polar j;

    j = r;

    j.getdata();

    r.getdata();

    return 0;

}