Returns a new array containing all of a, with additional extra space added (zero initialized).

       


/* Copyright (C) 2003 Univ. of Massachusetts Amherst, Computer Science Dept.
   This file is part of "MALLET" (MAchine Learning for LanguagE Toolkit).
   http://www.cs.umass.edu/~mccallum/mallet
   This software is provided under the terms of the Common Public License,
   version 1.0, as published by http://www.opensource.org.  For further
   information, see the file `LICENSE' included with this distribution. */

//package cc.mallet.util;

import java.lang.reflect.Array;

/**
 *  Static utility methods for arrays 
 *   (like java.util.Arrays, but more useful).
 *
 * @author <a href="mailto:casutton@cs.umass.edu">Charles Sutton</a>
 * @version $Id: ArrayUtils.java,v 1.1 2007/10/22 21:37:40 mccallum Exp $
 */
public class Util{
    /**
     * Returns a new array containing all of a, with additional extra space added (zero initialized).
     * @param a
     * @param additional
     * @return
     */
    public static int[] extend (int[] a, int additional)
    {
      int[] ret = new int[a.length + additional];
      System.arraycopy(a, 0, ret, 0, a.length);
      return ret;
    }

  /**
   * Returns a new array containing all of a, with additional extra space added (zero initialized).
   * @param a
   * @param additional
   * @return
   */
  public static double[] extend (double[] a, int additional)
  {
    double[] ret = new double[a.length + additional];
    System.arraycopy(a, 0, ret, 0, a.length);
    return ret;
  }


}

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Returns a new array containing all of a, with additional extra space added (zero initialized). : Array SubArray « Collections Data Structure « Java

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