How to Declare a Float Array in C++ - Step by Step Examples

◀ Previous Next ▶

How to Declare a Float Array in C++ ?

Answer

To declare a float array in C++, you can use array notation or the standard library vector.

✐ Examples

1 Declare and Initialize a Float Array

In this example,

We declare a float array named floatArray with predefined values using array notation.
We print the array elements to the console to demonstrate the initialization.

C++ Program

#include <iostream>
#include <vector>

int main() {
    float floatArray[] = {1.2, 3.4, 5.6};
    int size = sizeof(floatArray) / sizeof(floatArray[0]);
    std::cout << "Float Array: ";
    for (int i = 0; i < size; ++i) {
        std::cout << floatArray[i] << ' ';
    }
    std::cout << '\n';
    return 0;
}

Output

Float Array: 1.2 3.4 5.6

2 Declare an Empty Float Array

In this example,

We declare an empty float array named emptyFloatArray using the standard library vector without any elements.
We print the array elements to the console to demonstrate the declaration.

C++ Program

#include <iostream>
#include <vector>

int main() {
    std::vector<float> emptyFloatArray;
    std::cout << "Empty Float Array: ";
    for (float val : emptyFloatArray) {
        std::cout << val << ' ';
    }
    std::cout << '\n';
    return 0;
}

Output

Empty Float Array:

Summary

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

◀ Previous Next ▶

C++ Tutorials

C++ How-Tos

How to Declare a Float Array in C++ - Step by Step Examples

How to Declare a Float Array in C++ ?

Answer

✐ Examples

1 Declare and Initialize a Float Array

C++ Program

Output

2 Declare an Empty Float Array

C++ Program

Output

Summary

More C++ Arrays Tutorials