Introduction to String Concatenation in C++

String Concatenation is the process of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball".

The + operator can be used between strings to add them together to make a new string.

We can also add a space after firstName to create a space between Hello and World on output. However, you could also add a space with quotes (" " or ' '):

Single String

#include <iostream>
#include <string>
using namespace std;
 
int main () {
  string firstName = "Hello";
  string lastName = "World";
  string fullName = firstName + lastName;
  cout << fullName;
  return 0;
}

Output:

Multiple Strings

#include <iostream>
#include <string>
using namespace std;
 
int main () {
  string firstName = "The Tech ";
  string lastName = "Platform";
  string fullName = firstName + lastName + " " + "is your own platform, managed by you as your blog/website where you share your expertise, knowledge through your content ";
  cout << fullName;
  return 0;
}

Output:

The Tech Platform

www.thetechplatform.com