/* * Copyright (c) 2019, 2023, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ import java.lang.reflect.Array; import java.util.Date; public class ArrayKlassesApp { public static void main(String args[]) { if (args.length == 1) { if (args[0].equals("system")) { Date[][][] array = new Date[1][2][2]; int count = 0; for (int i=0; i<1; i++) { for (int j=0; j<2; j++) { for (int k=0; k<2; k++) { array[i][j][k] = new Date(); count++; array[i][j][k].setTime(20000 * count); } } } } else if (args[0].equals("primitive")) { long[][][] larray = new long[1][2][2]; long lcount = 0; for (int i=0; i<1; i++) { for (int j=0; j<2; j++) { for (int k=0; k<2; k++) { lcount++; larray[i][j][k] = lcount; } } } } else if (args[0].equals("integer-array")) { Integer[][][][] iarray = new Integer[4][4][4][4]; int count = 0; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { for (int k = 0; k < 4; k++) { for (int l = 0; l < 4; l++) { count++; iarray[i][j][k][l] = new Integer(count); } } } } System.out.println(iarray); System.out.println(iarray.getClass()); } } else { Object x = Array.newInstance(ArrayKlassesApp.class, 3,3,3); System.out.println(x); System.out.println(x.getClass()); System.out.println(Array.getLength(x)); } } }