Thread: problems with variable in class decleration prog.

ok, i'm new to c++ and trying to learn it on my own. i've been doing not that bad...until i reached the point of classes. i copied the code from "teach yourself c++ in 21 days" and decided to augment it to ask the user for a certain piece of input. here is the augmented code:

Code:

#include <cstdlib>
#include <iostream>

class cat
{
      public:
             int itsAge;
             int itsWeight;
};

using namespace std;

int main(int argc, char *argv[])
{
    int x;
    cat frisky;
    frisky.itsAge = x;
    cout << "How old is frisky?\n";
    cin >> x;
    cout << "Frisky is a cat who is ";
    cout << frisky.itsAge << " years old.\n";
    system("PAUSE");
    return EXIT_SUCCESS;
}

i hope i did that right. any road....when i run it, well here is a sample output:

How old is frisky?
5
Frisky is a cat who is 2 years old
press any key to continue....

ok, where the duce is the 2 coming from. i never declared x to = 2, it was supposed to be user defined. help please? thank you in advance....

i thought that's what i was doing by declaring "frisky.itsAge = x;" i guess i am not understanding what you meant. pardon my density....but is there another way you could put it?

that worked... i put

cat frisky;
frisky.itsAge = x;

AFTER the cin >> x; and it worked perfectly. thanks for your help and patience

it's an important concept to differentiate between the locations of variables and the values contained at those locations.

you're copying values here, but when you get into pointers and references, they will work in the way you're expecting here.