HSC – Using Member Functions IN C++ | eXP – 3

#include<iostream.h> // include input/output stream library
#include<conio.h> // include console input/output library

class ratio // define a class named "ratio"
{
private: // define the private data members of the class
    int num, den; // numerator and denominator of the ratio
    float f, ref; // float values for the ratio and its reciprocal
    double n; // double value for the converted ratio
public: // define the public member functions of the class
    void assign(); // function to assign values to the numerator and denominator
    void convert(); // function to convert the ratio to double
    void invert(); // function to calculate the reciprocal of the ratio
    void print(); // function to print the ratio and its reciprocal
};

void ratio::assign() // definition of the assign member function
{
    cout << " Enter the numerator of the ratio\n"; // prompt the user to enter the numerator
    cin >> num; // read in the numerator
    cout << " Enter the denominator of the ratio\n"; // prompt the user to enter the denominator
    cin >> den; // read in the denominator
    f = (float)num / den; // calculate the ratio as a float
}

void ratio::convert() // definition of the convert member function
{
    n = f; // convert the ratio to a double
}

void ratio::invert() // definition of the invert member function
{
    ref = 1 / f; // calculate the reciprocal of the ratio
}

void ratio::print() // definition of the print member function
{
    cout << "\n The original ratio is=\n" << f; // print the original ratio
    cout << "\n The reciprocal of the ratio is=\n" << ref; // print the reciprocal of the ratio
}

void main() // main function
{
    clrscr(); // clear the console screen
    ratio obj; // create an object of the ratio class
    obj.assign(); // call the assign member function to assign values to the object
    obj.convert(); // call the convert member function to convert the ratio
    obj.invert(); // call the invert member function to calculate the reciprocal of the ratio
    obj.print(); // call the print member function to print the ratio and its reciprocal
    getch(); // wait for user input before exiting the program
}