Concatenation in C++

In C++, the process of combining two or more strings to create a new string is called concatenation. There are a few different ways to concatenate strings in C++, including using the + operator or the append() function. Here are some examples:

Using the + operator:

#include 
#include 
using namespace std;
int main() {

   string first = "Hello";

   string second = "World";

   string result = first + " " + second;

   cout << result << endl;

   return 0;

}

Result:

Hello World

Using the append() function:

#include 
#include 
using namespace std;
int main() {

    string first = "Hello";

    string second = "World";

    first.append(" ");

    first.append(second);

    cout << first << endl;

    return 0;

}

Result:

Hello World