Java tutorial
//package com.java2s; /* BlueFlyVario flight instrument - http://www.alistairdickie.com/blueflyvario/ Copyright (C) 2011-2012 Alistair Dickie BlueFlyVario is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. BlueFlyVario 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 for more details. You should have received a copy of the GNU General Public License along with BlueFlyVario. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static double[] copy(double[] dataToCopy) { if (dataToCopy == null) { return null; } double[] ret = new double[dataToCopy.length]; System.arraycopy(dataToCopy, 0, ret, 0, dataToCopy.length); return ret; } }