for a simple program...

#include <iostream>
using namespace std;
int main()
{int x;
cout << "enter password\n";
cin >> x;
return 0;
}

for the pink colour part..
if i want my password to be in integer and alphabets, so what command line should i put?

and when i enter a password... i want it to reveal the code in this form "*****". How should i do that?