Unit 8: 2D Arrays

A data structure that stores elements in a grid-like format, organized by ______ and ______. Instead of one index, you need two.

The process of informing Java about the type of elements a 2D array will hold, using ______ square brackets (e.g., `int[][] grid;`).

The process of allocating ______ for a 2D array, specifying the number of ______ and ______, e.g., `grid = new int[3][4];`.

The property of arrays where the first element is at index ______, meaning a 3-row array has valid row indices from 0 to ______.

A common control structure used to ______ every element in a 2D array, typically with an outer loop for ______ and an inner loop for ______.