String-Reference

#include <iostream>
#include <cstdio>
#include <iomanip>
#include <algorithm>
#include <bits/stdc++.h>
using namespace std;

int main()
{
    string st1, st2;
    st1 = "Hello";
    st2 = "G";

    cout << st1 + st2 << endl; // only shows joined output s1=s1+s2 is also valid to append

    st1.append(st2); // joins the two strings
    cout << st1 << endl;

    st1.clear(); // Clears the string value s1.empty() returnes posive value to tell empty
    cout << st1 << endl;

    string str3 = "guru";
    string str4 = "guru";

    cout << str3.compare(str4) << endl; // gives 0 if eaqual else positive value

    string str6 = "Heisaloyalman";

    str6.erase(5, 5); //(position from , number of digits)
    cout << str6 << endl;

    cout << str6.find("boy") << endl; // Tells position where is it present

    str6.insert(2, " Google "); // insetrs string in the position given
    cout << str6 << endl;

    cout << str6.length() << endl; // Tells length of a string

    string s = str6.substr(3, 6); // makes a substring
    cout << s << endl;

    string snum = "67";
    int n = stoi(snum); // convers num string to int value
    cout << n + 2 << endl;

    cout << to_string(n) << endl; // convers int to string

    string alpha = "nbdahsghbfhdasfdsbsbavdgastgd";
    sort(alpha.begin(), alpha.end()); // sorts the given string
    cout << alpha << endl;

    return 0;
}