Some beginner questions. I am currently trying to learn C++ from
a book (Sams teach yourself C++) and I had several questions.
Does using the following. Instead of calling them again every
time have any effect on the programs execution or is it just
laziness? With calling them again every time I mean for example.
using namespace std; Second, I see "#define" used a lot on this
forum. According to my book "const" should be used instead. Why
is it used so much on this forum? The book mentions that it used
to be done like that but that it has been declared obsolete. Not
to mention the advantages "const" has over "#define". std::cout
<< "\nThis is a line of code!\n"; const unsigned short integer
myAge = 25; usings are just to bring in the namespace. Doesn't
effect the program. I prefer to be explicit: const is usually
the better choice. But there can be cases for the defines.