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Multidimensional Arrays
Prerequisites: Arrays
A 2D array is an array of arrays — useful for grids and matrices:
int[][] grid = {
{1, 2, 3},
{4, 5, 6},
};
System.out.println(grid[1][2]); // 6 — row 1, column 2
for (int[] row : grid) {
for (int value : row) {
System.out.print(value + " ");
}
System.out.println();
}