Array.length

[Weerawit Maneepongsawat]

  public class Qaa75 {
    public static void main(String[] args) {
        String[][][] arr = {
            { {}, null },
            { { "1", "2" }, { "1", null, "3" } }, {},
            { { "1", null } }
        };
        System.out.println(arr.length + arr[1][2].length);
    }
}

why it throw ArrayIndexOutOfBoundsException
??? i think arr[1][2].length = 0 ??

[Barry Gaunt]

No. a[1] is { { "1", "2" }, { "1", null, "3" } }
a[1][0] is { "1", "2" }, and a[1][1] is { "1", null, "3" }, and a[1][2] is ???