PPT Slide

J.44

The length field of an array object makes

the length of the array available.

Java supports arrays of arrays, rather than

2D or multi-dimensional arrays.

Example:

public class myArray {

public static void main (String[] args) {

double[] [] mat = {{1., 2., 3., 4.}, {5., 6., 7., 8.},

{9., 10., 11., 12.}, {13., 14., 15., 16.}};

for (int y = 0; y < mat.length; y++) {

for (int x = 0; x < mat[y].length; x++)

System.out.print(mat[y][x] + " ");

System.out.println();

}}}

What does it print?

Is the array stored in row-major or column-major

order?

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