C++ operator overide example

a modified book example

#include "mytime.h"
#include <iostream>
using namespace std;
mytime::mytime()
{
    // TODO Auto-generated constructor stub

}

mytime::~mytime()
{
    // TODO Auto-generated destructor stub
}
mytime::mytime(int h,int m)
{
    hours   = h;
    minutes = m;
}
mytime mytime::operator+(const mytime &t)const
{
    mytime sum;
    sum.minutes = minutes + t.minutes;
    sum.hours   = hours + t.hours + sum.minutes /60;
    sum.minutes %=60;
    return sum;  //
}
void mytime::show()
{
    cout<<"result hours"<<hours<<endl;
    cout<<"result minutes"<<minutes<<endl;
}

int main()
{
    mytime beforetime(2,40);
    mytime addtime(3,55);
    mytime resultime = beforetime + addtime;
    resultime.show();
}