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Declare 2D Array of Pointers

2D pointer array declaration

Declare and use a two-dimensional array of pointers - useful for storing strings of different lengths.

Program Code

2d_pointer_array.c

1#include <stdio.h>
2
3int main() {
4    // 2D array of pointers to strings
5    char *names[5] = {
6        "Alice",
7        "Bob",
8        "Charlie",
9        "David",
10        "Eve"
11    };
12    
13    printf("Names using 2D pointer array:\n");
14    for (int i = 0; i < 5; i++) {
15        printf("names[%d] = \"%s\"\n", i, names[i]);
16    }
17    
18    // 2D pointer array for integers
19    int row1[] = {1, 2, 3};
20    int row2[] = {4, 5, 6, 7};
21    int row3[] = {8, 9};
22    
23    int *matrix[] = {row1, row2, row3};
24    int sizes[] = {3, 4, 2};
25    
26    printf("\nJagged array (rows of different sizes):\n");
27    for (int i = 0; i < 3; i++) {
28        printf("Row %d: ", i);
29        for (int j = 0; j < sizes[i]; j++) {
30            printf("%d ", matrix[i][j]);
31        }
32        printf("\n");
33    }
34    
35    return 0;
36}