#include <bits/stdc++.h>
using namespace std;
int main() {
string str1("Hello World now");
string str2(str1);
string str3(5,'#');
string str4(str1, 6, 6);
string str5(str2.begin(), str2.begin() + 5);
cout << str1 << endl << endl;
cout << str2 << endl << endl;
cout << str3 << endl << endl;
cout << str4 << endl << endl;
cout << str5 << endl << endl;
string str6 = str4;
int len = str6.length();
cout << "Length of string is : " << len << endl << endl;
char ch = str6.at(2);
cout << "third character of string is : " << ch << endl << endl;
str6.append(" extension");
str4.append(str6, 0, 6);
cout << str6 << endl << endl;
cout << str4 << endl << endl;
str6 = "This is a examples";
str6.replace(2, 7, "ese are test");
cout << str6 << endl;
return 0;
}
//Output Result written below :
//Hello World now
//Hello World now
//#####
//World
//Hello
//Length of string is : 6
//third character of string is : r
//World extension
//World World
//These are test examples