How to Concatenate Strings in Array in C++ - Step by Step Examples

How to Concatenate Strings in Array in C++ ?

Answer

To concatenate strings in an array in C++, you can use functions like `std::accumulate` or a loop to iterate through the array and concatenate each element.

✐ Examples

1 Concatenate Strings in Array with std::accumulate

In this example,

We include the necessary header files.
We create a vector `words` with strings.
We use the `std::accumulate` function with a lambda function to concatenate strings in the array.
We print the concatenated string.

C++ Program

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
#include <string>

int main() {
    std::vector<std::string> words = {"Hello", "World", "!"};
    std::string concatenated = std::accumulate(words.begin(), words.end(), std::string(),
        [](const std::string& a, const std::string& b) {
            return a + " " + b;
        });
    std::cout << "Concatenated String: " << concatenated << std::endl;
    return 0;
}

Output

Concatenated String: Hello World !

2 Concatenate Strings in Array with Loop

In this example,

We create a vector `words` with strings.
We initialize an empty string `concatenated`.
We use a for loop to iterate through the vector and concatenate each element to `concatenated`.
We print the concatenated string.

C++ Program

#include <iostream>
#include <vector>
#include <string>

int main() {
    std::vector<std::string> words = {"Hello", "World", "!"};
    std::string concatenated;
    for (const std::string& word : words) {
        concatenated += word + " ";
    }
    std::cout << "Concatenated String: " << concatenated << std::endl;
    return 0;
}

Output

Concatenated String: Hello World !

Summary

In this tutorial, we learned How to Concatenate Strings in Array in C++ language with well detailed examples.

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How to Concatenate Strings in Array in C++ - Step by Step Examples

How to Concatenate Strings in Array in C++ ?

Answer

✐ Examples

1 Concatenate Strings in Array with std::accumulate

C++ Program

Output

2 Concatenate Strings in Array with Loop

C++ Program

Output

Summary

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