implementation file

[Nearlybear]

I don't have allot of experience I am just learning c++ unfortunately,I have an instructor who only likes to read from the book. I am not understanding what the implementations file does, please help

[Callum5042]

Implementation file (source file) is where the definitions of the functions go.

class.h
void Hello();

class.cpp

void Hello()
{
    // code
}