How to Declare an Integer Array in C++ - Step by Step Examples

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How to Declare an Integer Array in C++ ?

Answer

To declare an integer array in C++, you can use array notation or the array container.

✐ Examples

1 Declare and Initialize an Integer Array

In this example,

We declare an integer array named numbers with predefined values using array notation.
We print the array to demonstrate the initialization.

C++ Program

#include <iostream>
int main() {
    int numbers[5] = {1, 2, 3, 4, 5};
    std::cout << "Integer Array: ";
    for (int i = 0; i < 5; ++i) {
        std::cout << numbers[i] << " ";
    }
    std::cout << std::endl;
    return 0;
}

Output

Integer Array: 1 2 3 4 5

2 Declare an Empty Integer Array

In this example,

We declare an empty integer array named emptyArray using the array container.
We print the array to demonstrate the declaration.

C++ Program

#include <iostream>
#include <array>
int main() {
    std::array<int, 0> emptyArray;
    std::cout << "Empty Integer Array: ";
    for (const auto& element : emptyArray) {
        std::cout << element << " ";
    }
    std::cout << std::endl;
    return 0;
}

Output

Empty Integer Array:

Summary

In this tutorial, we learned How to Declare an Integer Array in C++ language with well detailed examples.

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