In this tutorial, we will write a Program to access an element in 2D Array in C. Before that, you should have knowledge of the following C programming topics.
Accessing Array Elements
2D Array is of 2 Dimensional, one determines the number of rows and another is for columns.
Example: arr[0][1] refers element belonging to the zeroth row and first column in a 2D array.
- For accessing an elemnt, we need two Subscript variables (i, j).
- i = number of rows.
- j = number of columns.
C Program to access the 2D Array element
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #include <stdio.h> int main() { int i, j, arr[3][3]; printf("Enter the element for each row and column:\n"); for (i = 0; i < 3; i++) { for (j = 0; j < 3; j++) { printf("arr[%d][%d] = ", i, j); scanf("%d", &arr[i][j]); } } //Display array printf("\nElement present in an Array:\n"); for (i = 0; i < 3; i++) { for (j = 0; j < 3; j++) { printf("%d\t", arr[i][j]); } printf("\n"); } return (0); } |
Output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | Enter the element for each row and column: arr[0][0] = 1 arr[0][1] = 2 arr[0][2] = 3 arr[1][0] = 4 arr[1][1] = 5 arr[1][2] = 6 arr[2][0] = 7 arr[2][1] = 8 arr[2][2] = 9 Element present in an Array: 1 2 3 4 5 6 7 8 9 |