Craigslist used rvs for sale by owner near shimaneCopy. We will explore the following techniques of adding strings in C++: Add two strings using + operator. Add two strings using strcat method. Add two strings using strncat method. Add integer to string using to_string () Add two strings using append () Add two strings using format () in C++20. Quitting tianeptine cold turkeyOct 16, 2019 · Approach: Get the two Strings to be concatenated. Declare a new Strings to store the concatenated String. Insert the first string in the new string. Insert the second string in the new string. Print the concatenated string.