// arrays/MultiDimWrapperArray.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// Multidimensional arrays of "wrapper" objects

import java.util.*;

public class MultiDimWrapperArray {

public static void main(String[] args) {

Integer[][] a1 = { // Autoboxing

{ 1, 2, 3, },

{ 4, 5, 6, },

};

Double[][][] a2 = { // Autoboxing

{ { 1.1, 2.2 }, { 3.3, 4.4 } },

{ { 5.5, 6.6 }, { 7.7, 8.8 } },

{ { 9.9, 1.2 }, { 2.3, 3.4 } },

};

String[][] a3 = {

{ "The", "Quick", "Sly", "Fox" },

{ "Jumped", "Over" },

{ "The", "Lazy", "Brown", "Dog", "&", "friend" },

};

System.out.println(

"a1: " + Arrays.deepToString(a1));

System.out.println(

"a2: " + Arrays.deepToString(a2));

System.out.println(

"a3: " + Arrays.deepToString(a3));

}

}

/* Output:

a1: [[1, 2, 3], [4, 5, 6]]

a2: [[[1.1, 2.2], [3.3, 4.4]], [[5.5, 6.6], [7.7,

8.8]], [[9.9, 1.2], [2.3, 3.4]]]

a3: [[The, Quick, Sly, Fox], [Jumped, Over], [The,

Lazy, Brown, Dog, &, friend]]

*/