How to get First Element in a List in C++

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How to get First Element in a List in C++ ?

Answer

To get the first element in a C++ std::list, you can use the `front()` method.

✐ Examples

1 Get First Element in C++ std::list of Integers

In this example,

We include the necessary header for std::list and for output.
We create a std::list named numbers with integer elements.
We access the first element using the front() method.
Finally, we print the first element to the console.

C++ Program

#include <iostream>
#include <list>

int main() {
    std::list<int> numbers = {10, 20, 30, 40, 50};
    int firstElement = numbers.front();
    std::cout << "First element is: " << firstElement << std::endl;
    return 0;
}

Output

First element is: 10

2 Get First Element in C++ std::list of Strings

In this example,

We include the necessary header for std::list and for output.
We create a std::list named names with string elements.
We access the first element using the front() method.
Finally, we print the first element to the console.

C++ Program

#include <iostream>
#include <list>
#include <string>

int main() {
    std::list<std::string> names = {"Alice", "Bob", "Charlie", "David"};
    std::string firstElement = names.front();
    std::cout << "First element is: " << firstElement << std::endl;
    return 0;
}

Output

First element is: Alice

Summary

In this tutorial, we learned How to get First Element in a List in C++ language with well detailed examples.

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How to get First Element in a List in C++

How to get First Element in a List in C++ ?

Answer

✐ Examples

1 Get First Element in C++ std::list of Integers

C++ Program

Output

2 Get First Element in C++ std::list of Strings

C++ Program

Output

Summary

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