Answer to Question #182444 in C++ for P. Gokul

Question

Write a C++ program to implement time class that has separate data members for hours, minutes and seconds. Overload + Operator to add two times (object) and -- operator to decrement the time by one second.

Answer 1

#include <iostream>
using namespace std;
class Time{
    int hours, minutes, seconds;
    public:
    Time(){}
    Time(int h, int m, int s){
        hours = h;
        minutes = m;
        seconds = s;
    }
    void display(){
        cout<<this->hours<<":"<<this->minutes<<":"<<this->seconds<<endl;
    }
    Time operator+(const Time &a){
        int h, m, s;
        h = this->hours + a.hours;
        m = this->minutes + a.minutes;
        s = this->seconds + a.seconds;
        if(s >= 60){
            s -= 60;
            m++;
        }
        if(m >= 60){
            m -= 60;
            h++;
        }
        return Time(h, m, s);
    }
    Time operator--(){
        return *this + Time(0, 0, -1);
    }
};
int main(){
    int arr[3];
    Time time[2];
    string times[] = {"Hours", "Minutes", "Seconds"};
    for(int i = 0; i < 2; i++){
        cout<<"Enter time "<<i + 1<<" details\n";
        for(int j = 0; j < 3; j++){
            cout<<times[j]<<": ";
            cin>>arr[j];
        }
        time[i] = Time(arr[0], arr[1], arr[2]);
    }
    cout<<"Time 1 + Time 2\n"; (time[0] + time[1]).display();
    cout<<"--Time 1\n"; (--time[0]).display();
    cout<<"--Time 2\n"; (--time[1]).display();
    return 0;
}