How to create a Three Dimensional Array in C - Step by Step Examples

How to create a Three Dimensional Array in C ?

Answer

To create a three-dimensional array in C, you need to specify the dimensions and initialize the array with the desired values. You can then use nested loops to iterate through each element of the 3D array.

✐ Examples

1 Create and Access Elements of a Three Dimensional Array

In this example,

We declare and initialize a three-dimensional array named arr with dimensions [2][2][2].
We use nested loops to access and print each element of the 3D array.
The outer loop iterates through the first dimension, the middle loop iterates through the second dimension, and the innermost loop iterates through the third dimension.
We print each element using the array indices.

C Program

#include <stdio.h>

int main() {
    int arr[2][2][2] = {
        {
            {1, 2},
            {3, 4}
        },
        {
            {5, 6},
            {7, 8}
        }
    };
    for (int i = 0; i < 2; i++) {
        for (int j = 0; j < 2; j++) {
            for (int k = 0; k < 2; k++) {
                printf("arr[%d][%d][%d] = %d\n", i, j, k, arr[i][j][k]);
            }
        }
    }
    return 0;
}

Output

arr[0][0][0] = 1
arr[0][0][1] = 2
arr[0][1][0] = 3
arr[0][1][1] = 4
arr[1][0][0] = 5
arr[1][0][1] = 6
arr[1][1][0] = 7
arr[1][1][1] = 8

2 Create and Initialize a Three Dimensional Array

In this example,

We declare a three-dimensional array named arr with dimensions [2][3][4].
We initialize the array with integer values.
We use nested loops to iterate over each element of the 3D array.
In each iteration of the innermost loop, we print the current element to the standard output.

C Program

#include <stdio.h>

int main() {
    int arr[2][3][4] = {
        {
            {1, 2, 3, 4},
            {5, 6, 7, 8},
            {9, 10, 11, 12}
        },
        {
            {13, 14, 15, 16},
            {17, 18, 19, 20},
            {21, 22, 23, 24}
        }
    };
    for (int i = 0; i < 2; i++) {
        for (int j = 0; j < 3; j++) {
            for (int k = 0; k < 4; k++) {
                printf("arr[%d][%d][%d] = %d\n", i, j, k, arr[i][j][k]);
            }
        }
    }
    return 0;
}

Output

arr[0][0][0] = 1
arr[0][0][1] = 2
arr[0][0][2] = 3
arr[0][0][3] = 4
arr[0][1][0] = 5
arr[0][1][1] = 6
arr[0][1][2] = 7
arr[0][1][3] = 8
arr[0][2][0] = 9
arr[0][2][1] = 10
arr[0][2][2] = 11
arr[0][2][3] = 12
arr[1][0][0] = 13
arr[1][0][1] = 14
arr[1][0][2] = 15
arr[1][0][3] = 16
arr[1][1][0] = 17
arr[1][1][1] = 18
arr[1][1][2] = 19
arr[1][1][3] = 20
arr[1][2][0] = 21
arr[1][2][1] = 22
arr[1][2][2] = 23
arr[1][2][3] = 24

Summary

In this tutorial, we learned How to create a Three Dimensional Array in C language with well detailed examples.

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How to create a Three Dimensional Array in C - Step by Step Examples

How to create a Three Dimensional Array in C ?

Answer

✐ Examples

1 Create and Access Elements of a Three Dimensional Array

C Program

Output

2 Create and Initialize a Three Dimensional Array

C Program

Output

Summary

More C Arrays Tutorials