Basic C++ functionality

[Crow T. Robot]

I'm familiar with Java but have just started C++. I have a very simple program but need to work out mostly problems such as syntax, proper declarations, etc. The program simply asks the user for their name, a lucky number, and then print them out, but I don't think I have variables initialized or read in properly, and probably some other problems of that nature. I just started using a C++ compiler and don't know how to get it to actually compile and run the program, so here it is.

#include <iostream>

int main() 
    {
    char name;
    int num;
    
    cout << "Enter your name/n";
    cin >> name;
    
    cout << "Enter your favorite lucky number/n";
    cin >> num;
    
    cout << "Hello " + name + ", I like the number " + num + "also!"
    }

[redhead]

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

int main() 
    {
    string name;
    int num;
    
    cout << "Enter your name/n";
    cin.getline(name);
    
    cout << "Enter your favorite lucky number/n";
    cin >> num;
    
    cout << "Hello " + name + ", I like the number " + num + "also!"
    }

[Valmont]

Red, when do you stop mixing std C++ with C?

cin.getline(name);

to

getline(cin, name);

[Rotkiv]

all yalls posts confused me

all you have to do is add:
std::
to the front of all of the cin's and cout's and your good to go.

redhead, I'm not questioning your knowledge but rather wanting to tap it:
what's the advantage of using string rather than char?

[redhead]

Originally Posted by Valmont

Red, when do you stop mixing std C++ with C?

cin.getline(name);

to

getline(cin, name);

Sorry, can't help it, I started out with strict C, never seemed to get past it...

[redhead]

Originally Posted by Rotkiv

redhead, I'm not questioning your knowledge but rather wanting to tap it:
what's the advantage of using string rather than char?

In his example he's only allocating room for one single char, not a name consisting of several chars.. Strange things might happen with a program like that, unless the std::cin(char) operator has been modified to dynamicaly allocate whatever is needed. Which i doubt, but I havn't seen the current deffinition of the standard function.
By using string, theres anough room, since string class will dynamicaly allocate space, and there are several usefull features hidden in there aswell.

[Kernel_Killer]

all yalls posts confused me

all you have to do is add:
std::
to the front of all of the cin's and cout's and your good to go.

You don't need them since he added the namespace.

using namespace std;

[Rotkiv]

thanx red.

kernel_killer:
I was editing the original code. I was told on these forums by valmont or red or someone that using std:: was better in the long run, if you plan on getting into namespaces, then 'using namespace std;'

[redhead]

Originally Posted by Rotkiv

thanx red.

You're welcome

Originally Posted by Rotkiv

I was editing the original code. I was told on these forums by valmont or red or someone that using std:: was better in the long run, if you plan on getting into namespaces, then 'using namespace std;'

That is true, if you plan on having alot of members writing/editing on your code, then the std:: way is better, since you know for sure its the right namespace you're dealing with, than just asuming the "using namespace std" will apply when it reaches your part of the code, if some one else plan on changing that above your code segment.
(don't know if I express myself clear enough here...)