Here you can find the source of printArray(Object array)
public static void printArray(Object array)
//package com.java2s; /*/*from w w w.j a va2 s . com*/ * Copyright (c) 2003, P.F.Peterson <petersonpf@ornl.gov> * Spallation Neutron Source at Oak Ridge National Laboratory * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, * modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ public class Main { public static void printArray(Object array) { int maxmax = 10; if (array instanceof float[]) { int maxI = ((float[]) array).length; if (maxI > maxmax) maxI = maxmax; System.out.print("["); for (int i = 0; i < maxI; i++) { System.out.print(((float[]) array)[i]); if (i < maxI - 1) System.out.print(", "); else if (i == maxI - 1) System.out.println(", ... ]"); } } else if (array instanceof int[]) { int maxI = ((int[]) array).length; if (maxI > maxmax) maxI = maxmax; System.out.print("["); for (int i = 0; i < maxI; i++) { System.out.print(((int[]) array)[i]); if (i < maxI - 1) System.out.print(", "); else if (i == maxI - 1) System.out.println(", ... ]"); } } else if (array instanceof float[][]) { int maxI = ((float[][]) array).length; if (maxI > maxmax) maxI = maxmax; System.out.print("["); for (int i = 0; i < maxI; i++) { printArray(((float[][]) array)[i]); if (i < maxI - 1) System.out.print(", "); else if (i == maxI - 1) System.out.println(", ... ]"); } } else if (array instanceof int[][]) { int maxI = ((int[][]) array).length; if (maxI > maxmax) maxI = maxmax; System.out.print("["); for (int i = 0; i < maxI; i++) { printArray(((int[][]) array)[i]); if (i < maxI - 1) System.out.print(", "); else if (i == maxI - 1) System.out.println(", ... ]"); } } else { System.out.println("NOT PRINTING"); } } }