OK, so I'm learning C++ and am trying to compile my first main.cpp and *.h file and am getting errors. The code was downloaded from the official site for the book that I'm using so I'm assuming there are no errors, but... it won't compile!!! What am I doing wrong?? Or does the program have errors in it?

Files:
main.cpp:
#include <iostream>

using namespace std;

#include "ccc_time.h"

int main()
{
Time wake_up(5, 6, 7);
wake_up.add_seconds(1000);
cout << wake_up.get_hours() << ":" << wake_up.get_minutes() << ":" << wake_up.get_seconds() << endl;

system("pause");
return (0);
}

ccc_time.h:
#ifndef CCC_TIME_H
#define CCC_TIME_H


class Time
{
public:

Time(int hour, int min, int sec);

Time();

int get_hours() const;

int get_minutes() const;

int get_seconds() const;

int seconds_from(Time t) const;

void add_seconds(int s);

private:
int time_in_secs;
};

#endif

Error I get:
[Linker error] undefined reference to 'Time::Time(int, int, int)'
[Linker error] undefined reference to 'Time::add_seconds(int)'
[Linker error] undefined reference to 'Time::get_seconds() const'
[Linker error] undefined reference to 'Time::get_minutes() const'
[Linker error] undefined reference to 'Time:: get_hours() const'
ls returned 1 exit status

I've tried compiling using g++ from command line, using Bloodshet Dev C++, and using Anjuta. I just can't seem to get it to work. What's wrong?

Thanks.

Simple, you have a header file having function declarations in class but where is the function definitions?

you need another .cpp or c++ file that will contain the definitions of those functions.
you see all errors are for missing functions:

That worked. This book is a little frustrating in that the chapter had the example file, but didn't explain anything how to compile the program/get it to work. Not very newbie friendly if you ask me. The other file was in the slew of files that I downloaded from the website. I added it & everything works great. Super thanks.