Create a class time with hours and minutes as its data members. Write a C++ program which has a member function to overload binary operator + to add two times. Also overload relational operator > to compare 2 times. It should also overload << (output) and >>(input) operator.

 

#include<iostream>

using namespace std;

class Time

{

    private:

        int hours;

        int minutes;

    public:

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

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

        Time operator +(Time);

        Time operator -(Time);

        bool operator >(const Time);

};

istream & operator >>(istream &in,Time &t)

{

    cout<<"enter time in hours and minutes :"<<endl;

    in>>t.hours>>t.minutes;

    return in;

}

Time Time :: operator+(Time t1)

{

    Time temp;

    temp.hours=hours+t1.hours;

    temp.minutes=minutes+t1.minutes;

    if (temp.minutes>=60)

    {

        temp.minutes -= temp.minutes-60;

        temp.hours++;

    }

    return temp;

}

Time Time :: operator -(Time t1)

{

    Time temp;

    temp.hours = hours-t1.hours;

    temp.minutes = minutes-t1.minutes;

    return temp;

}

ostream & operator <<(ostream &out,Time &t)

{

    // cout<<"time in hours and minutes :"<<endl;

    out<<t.hours<<" hours "<<t.minutes<<" minutes "<<endl;

    return out;

}

bool Time :: operator >(const Time t1)

{

    if (hours>t1.hours)

    {

        return true;

    }

    if(hours == t1.hours && minutes == t1.minutes)

    {

        return true;

    }

    return false;

}

int main()

{

    Time T1,T2,T3,T4;

    cout<<"Enter first time :"<<endl;

    cin>>T1;

    cout<<"Enter second time :"<<endl;

    cin>>T2;

    T3=T1+T2;

    cout<<T3;

    T4=T1-T2;

    cout<<T4;

    if (T1>T2)

    {

        cout<<"first time is greater than other"<<endl;

    }

    else

    cout<<"second time is greater than first one"<<endl;

}

output :

Enter first time : enter time in hours and minutes : 4 45 Enter second time : enter time in hours and minutes : 2 45 7 hours 30 minutes 2 hours 0 minutes first time is greater than other