Codehs 8.1.5 Manipulating 2d Arrays Exclusive -

var myArray = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];

By mastering the nested loop logic in 8.1.5, you are setting yourself up for success in more complex topics like 2D array traversals and the AP CS A "GridWorld" style problems. Codehs 8.1.5 Manipulating 2d Arrays

Here is a complete Java class that you might submit for CodeHS 8.1.5, assuming the prompt asks you to implement swapping and a pattern fill: var myArray = [[1, 2, 3], [4, 5,

function doubleArray(matrix) for (let i = 0; i < matrix.length; i++) for (let j = 0; j < matrix[i].length; j++) matrix[i][j] *= 2; var myArray = [[1

swapRows(test, 0, 2); System.out.println("\nAfter swapping row 0 and 2:"); print2D(test);

The standard traversal pattern uses the length of the array to determine the number of rows and the length of the first row to determine the number of columns: