Arrays.fill with multidimensional array in Java

Question

How can I fill a multidimensional array in Java without using a loop? I\'ve tried:

double[][] arr = new double[20][4];
Arrays.fill(arr, 0);

Answer 1

Arrays.fill works only with one-dimensional array

Source of java.util.Arrays:

public static void fill(Object[] a, Object val) {
        int i = 0;

        for(int len = a.length; i < len; ++i) {
            a[i] = val;
        }

Use own loops for initialization array