Write a menu driven program for addition, subtraction, display result of two distances (given in meter and centimetre) . i. Overload ‘+’ operator with member function ii. Overload ‘–‘ operator using friend function iii. Overload << and >> operator

 

#include<iostream>

using namespace std;

class Distance

{

    private:

            int meter;

            int centimeter;

    public:

            Distance operator +(Distance &);

            Distance operator -(Distance &);

            friend istream & operator >>(istream &,Distance &);

            friend ostream & operator <<(ostream &,Distance &);

};

istream& operator >>(istream &in ,Distance &c)

{

    in>>c.meter;

    cout<<"meter"<<endl;

    in>>c.centimeter;

    cout<<"centimeter"<<endl;

    return(in);

}

 Distance Distance :: operator+ (Distance & m)

{

    Distance temp;

    temp.meter = meter+m.meter;

    temp.centimeter = centimeter + m.centimeter;

    if (temp.centimeter >= 100)

    {

        temp.centimeter=temp.centimeter-100;

        temp.meter++;

    }

    return temp;

}

Distance Distance :: operator -(Distance & m)

{

    Distance  temp;

    temp.meter = meter-m.meter;

    temp.centimeter = centimeter - m.centimeter;

    return temp;

}

ostream& operator <<(ostream &out ,Distance &c)

{

    out<<c.meter<<"meter and "<<c.centimeter<<"centimeter"<<endl;

    return(out);

}

int main()

{

    Distance d1,d2,d3,d4;

    cout<<"enter first distance in meter and in centimeter :"<<endl;

    cin>>d1;

    cout<<"enter second distance in meter and in centimeter :"<<endl;

    cin>>d2;

    d3=d1+d2;

    cout<<"addition of two distance is :"<<endl;

    cout<<d3;

    d4=d1-d2;

    cout<<"substraction of two distance is :"<<endl;

    cout<<d4;

}

output :

enter first distance in meter and in centimeter : 4 meter 67 centimeter enter second distance in meter and in centimeter : 2 meter 45 centimeter addition of two distance is : 7meter and 12centimeter substraction of two distance is : 2meter and 22centimeter