Learn how to declare and use arrays in C programming with simple examples. Perfect for beginners using Debian 12 and Vim.

Declaring and Using Arrays in C

An array in C is a collection of elements of the same type stored in contiguous memory locations.

Declaring Arrays

Syntax to declare an array:

type arrayName[arraySize];

Example:

int numbers[5];

Initializing Arrays

You can initialize an array during declaration:

int numbers[5] = 1, 2, 3, 4, 5;

Accessing Array Elements

Access elements using indices starting from 0:

printf(\\"%d\\", numbers[0]);  // prints 1

Example Program

#include 

int main() 
    int numbers[5] = 10, 20, 30, 40, 50;
    for (int i = 0; i < 5; i++) 
        printf(\\"Element %d: %d\\\
\\", i, numbers[i]);
    
    return 0;

Compiling and Running

gcc arrays.c -o arrays
./arrays

Expected Output

Element 0: 10
Element 1: 20
Element 2: 30
Element 3: 40
Element 4: 50

Summary

Arrays store multiple values of the same type and allow easy access by index.

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