string,array,function parameter and ... problem

Question

I writed a code and i run into some problems.
I want to pass data to an array in a object that is has private access (Encapsulation)

Problems :
1. 'string' has been not declared - L14
2. 'string' does not name a type - L22
3. 'name' was not declared in this scope - L15, L19
4. 'c' was not declared in this scope - L15
5. return-statement with a value, in function returning 'void' [-fpermissive] - L19
6. 'x' was not declared in this scope - L31
7. expected primary-expression before 'userInput' - L34
8. 'userInput' was not declared in this scope - L31
9. invalid conversion from 'const char*' to 'int' [-fpermissive] - L38

App used and Compiler :
Code::Block
GNU GCC Compiler

Code link :
https://code.sololearn.com/cXxKj3iM27cH/#cpp

Answer 1

Remove #include <conio.h>
~~~
for (x = 0; ;x++) --> while (userInput != "exit")
~~~
variable declaration can't be chained with the input stream
cin >> string userInput;

Instead
string userInput;
cin >> userInput;
~~~
userInput = dataObj.setName(""); --> dataObj.setName(userInput);
~~~
c variable hasn't been defined in this scope.

void setName(string inName) {
Name[c] = inName;
c++;
}

Probably should be a private member of Data class and it's better to be of type `size_t` or `unsigned`.
~~~
void getName(int n) {
return Name[n];
}

must be

string getName(int n) {
return Name[n];
}
~~~
Rudimentary solution for holding 100 name + exit sentinel
string Name[]; --> string Name[100];
~~~
Remove getch();
~~~

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

class Data {
public:
Data() {
c = 0;
}

void setName(string inName) {
if (c >= 100) { cout << "Array is full\n"; return; }
Name[c] = inName;
c++;
}
string getName(int n) {
if (n >= c) { cout << "Array bound violation\n"; return ""; }
return Name[n];
}
private:
size_t c;
string Name[100];
};

using namespace std;

int main() {
int n = 0;
Data dataObj;

string userInput = "";
while (userInput != "exit") {
cout << "Import Your Name" << endl << endl;
cout << "if you want to exit, type \"exit\"" << endl;
cin >> userInput;

dataObj.setName(userInput);
++n;
}
for (size_t i = 0; i <= n; ++i)
cout << dataObj.getName(i) << endl;
return 0;
}

Answer 2

Use std::string instead of string
Or move using namespace std befor the class declaration