Operator >> overloading problem

snsnsn

class Time {
friend ostream&operator << (ostream&output, Time&t)
{
cout << t.hour << ":" << t.minute << ":" << t.second;
return output;
}
friend istream&operator >> (istream&input, Time&t)
{
}
private:
int hour; int minute; int second;
};
Requires the input of an object of class Time in the format of hh-mm-ss. I don't know how to write that overloaded >> function. Please enlighten me

jotoos

friend istream&operator >> (istream&input, Time&t)
{
    string temp;
    input >> temp;
    // Parse temp, substring, string-"int ...
}

snsnsn

friend istream&operator >> (istream&input, Time&t)
{
    string temp;
    input >> temp;
    // Parse temp, substring, string-"int ...
}
====================================================
Can you write it completely, thanks a lot :)

jotoos

#include <string>
#include <iostream>
#include <sstream>
using namespace std;

class Time
{
friend ostream&operator << (ostream&output, Time&t)
{
cout << t.hour << ":" << t.minute << ":" << t.second;
return output;
}
friend istream&operator >> (istream&input, Time&t)
{
string temp;
input >> temp;
istringstream iss;
iss.str (temp);
iss.str (temp.substr (0, 2));
iss >> t.hour;
iss.clear ();
iss.str (temp.substr (3, 2));
iss >> t.minute;
iss.clear ();
iss.str (temp.substr (6, 2));
iss >> t.second;
return input;
}
private:
int hour;
int minute;
int second;
};

int main (void)
{
    Time t;
    cin >> t;
    cout << t << endl;
    return 0;
}

snsnsn

I understand
Is there any other way

zfy010317

hh-mm-ss
simple way:

int hh, mm, ss;
string b;
cin >> hh >> b >> mm >> b >> ss;

snsnsn

simple way:

int hh, mm, ss;
string b;
cin >> hh >> b >> mm >> b >> ss;
==================================================
?

snsnsn

simple way:

int hh, mm, ss;
string b;
cin >> hh >> b >> mm >> b >> ss;
==========================================
?