Mega Code Archive
Returns true if all the references in array1 are equal to all the references in array2 (two null references are
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/*
* JCommon : a free general purpose class library for the Java(tm) platform
*
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -------------------
* ArrayUtilities.java
* -------------------
* (C) Copyright 2003-2005, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: ArrayUtilities.java,v 1.7 2008/09/10 09:21:30 mungady Exp $
*
* Changes
* -------
* 21-Aug-2003 : Version 1 (DG);
* 04-Oct-2004 : Renamed ArrayUtils --> ArrayUtilities (DG);
*
*/
public class Main {
/**
* Returns <code>true</code> if all the references in <code>array1</code>
* are equal to all the references in <code>array2</code> (two
* <code>null</code> references are considered equal for this test).
*
* @param array1 the first array (<code>null</code> permitted).
* @param array2 the second array (<code>null</code> permitted).
*
* @return A boolean.
*/
public static boolean equalReferencesInArrays(final Object[] array1,
final Object[] array2) {
if (array1 == null) {
return (array2 == null);
}
if (array2 == null) {
return false;
}
if (array1.length != array2.length) {
return false;
}
for (int i = 0; i < array1.length; i++) {
if (array1[i] == null) {
if (array2[i] != null) {
return false;
}
}
if (array2[i] == null) {
if (array1[i] != null) {
return false;
}
}
if (array1[i] != array2[i]) {
return false;
}
}
return true;
}
}
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