C++ String input and output

#include <iostream>
#include <string>                 //for string class
using namespace std;
int main()//from  w w w .  ja v  a2 s.com
{                              //objects of string class
    string full_name, nickname, address;
    string greeting("Hello, ");
    cout << "Enter your full name: ";
    getline(cin, full_name);       //reads embedded blanks
    cout << "Your full name is: " << full_name << endl;
    cout << "Enter your nickname: ";
    cin >> nickname;               //input to string object
    greeting += nickname;          //append name to greeting
    cout << greeting << endl;      //output: "Hello, Jim"
    cout << "Enter your address on separate lines\n";
    cout << "Terminate with '$'\n";
    getline(cin, address, '$');    //reads multiple lines
    cout << "Your address is: " << address << endl;
    return 0;
}