Question 1
What does a nested loop usually do when processing a 2D array in row-by-row order?
Question 2
In a 2D array named $grid$, what does $grid.length$ usually represent?
Question 3
What is the main purpose of a traversal algorithm for a 2D array?
Question 4
Which code pattern is the best general approach for printing every value in a 2D array named $data$?
Question 5
What does $matrix[i][j]$ refer to in a 2D array?
