declare size of 2d array code example

Example 1: 2d arrays | java

int[][] arr = new int[row][column];

Example 2: declaring 3d arrays

int test[2][3][4] = {
    {{3, 4, 2, 3}, {0, -3, 9, 11}, {23, 12, 23, 2}},
    {{13, 4, 56, 3}, {5, 9, 3, 5}, {3, 1, 4, 9}}}