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String Concatenation in C++

Concatenation is the process of joining two or more strings end-to-end. In C++, you can use the + operator or the append() function for concatenation.

Using the + Operator

Example: Concatenating Strings with +

#include <iostream>
#include <string>

int main() {
    std::string firstName = "Karthick";
    std::string lastName = "AG";
    std::string fullName = firstName + " " + lastName;
    std::cout << "Full Name: " << fullName << std::endl;
    return 0;
}

Output:

Full Name: Karthick AG

Using the append() Function

Example: Concatenating Strings with append()

#include <iostream>
#include <string>

int main() {
    std::string greeting = "Vanakkam";
    greeting.append(", World!");
    std::cout << greeting << std::endl;
    return 0;
}

Output:

Vanakkam, World!

Key Takeaways

  • You can concatenate strings using the + operator or the append() function.
  • Concatenation combines strings into a single string.
  • Ensure proper spacing when concatenating strings.
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