How to Iterate Over an Array in C - Step by Step Examples

How to Iterate Over an Array in C ?

Answer

To iterate over an array in C, you can use a for loop to access each element of the array. The loop runs from the first index (0) to the last index (size-1) of the array, allowing you to perform operations on each element.

✐ Examples

1 Iterate Over an Integer Array

In this example,

We create an array named arr with integer values.
We determine the size of the array using the sizeof operator.
We use a for loop to iterate over each element of the array.
In each iteration of the loop, we print the current element to the standard output.

C Program

#include <stdio.h>

int main() {
    int arr[] = {1, 2, 3, 4, 5};
    int size = sizeof(arr) / sizeof(arr[0]);
    for (int i = 0; i < size; i++) {
        printf("%d\n", arr[i]);
    }
    return 0;
}

Output

2 Iterate Over a String Array

In this example,

We create an array named arr with string values.
We determine the size of the array using the sizeof operator.
We use a for loop to iterate over each element of the array.
In each iteration of the loop, we print the current element to the standard output.

C Program

#include <stdio.h>

int main() {
    char *arr[] = {"apple", "banana", "cherry"};
    int size = sizeof(arr) / sizeof(arr[0]);
    for (int i = 0; i < size; i++) {
        printf("%s\n", arr[i]);
    }
    return 0;
}

Output

apple
banana
cherry

Summary

In this tutorial, we learned How to Iterate Over an Array in C language with well detailed examples.

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