Now that we've covered the basics, let's move on to the fun part – manipulating 2D arrays! In exercise 8.1.5, you'll learn how to perform various operations on 2D arrays.
return matrix;
swapColumns(test, 1, 2); System.out.println("\nAfter swapping col 1 and 2:"); print2D(test); Codehs 8.1.5 Manipulating 2d Arrays