Here you can find the source of subarray(double[] orig, int off, int len)
public static double[] subarray(double[] orig, int off, int len)
//package com.java2s; /**//from www.j av a 2s .co m * Copyright 2004-2006 DFKI GmbH. * All Rights Reserved. Use is subject to license terms. * * Permission is hereby granted, free of charge, to use and distribute * this software and its documentation without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of this work, and to * permit persons to whom this work is furnished to do so, subject to * the following conditions: * * 1. The code must retain the above copyright notice, this list of * conditions and the following disclaimer. * 2. Any modifications must be clearly marked as such. * 3. Original authors' names are not deleted. * 4. The authors' names are not used to endorse or promote products * derived from this software without specific prior written * permission. * * DFKI GMBH AND THE CONTRIBUTORS TO THIS WORK DISCLAIM ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DFKI GMBH NOR THE * CONTRIBUTORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF * THIS SOFTWARE. */ public class Main { public static double[] subarray(double[] orig, int off, int len) { if (off + len > orig.length) throw new IllegalArgumentException("requested subarray exceeds array length"); double[] sub = new double[len]; System.arraycopy(orig, off, sub, 0, len); return sub; } }