C++ Tutorial 12 - Strings

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

int main()
{
 string s;
 cout << "s = " << s << endl;

 s = "This is nice!";
 cout << "s = " << s << endl;

 cout << s.at(1) << endl;

 string word;
 cout << "Enter a word to append: "; cin >> word;

 s += word;
 cout << "s = " << s << endl;

 cout << s.length() << endl;

 s.clear();
 cout << "s = " << s << endl;

 s = "ABC";
 cout << "s = " << s << endl;

 s.append("DEF");
 cout << "s = " << s << endl;

 s.insert(3,"123"); //inserts string after 3 character
 cout << "s = " << s << endl;

 s.replace(0,3,"XXX"); //replaces string starting from 0 to number of chars with sa XXX
 cout << "s = " << s << endl;

 cout << s.find("123") << endl;

 cout << s.substr(3) << endl;
 cout << s.substr(3,2) << endl;

 system("Pause");
 return 0;
}