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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
EqualsUtility.java | 100% | 100% | 50% | 90,9% |
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1 | /* $Id: EqualsUtility.java,v 1.4 2006/10/20 20:23:08 m31 Exp $ | |
2 | * | |
3 | * This file is part of the project "Hilbert II" - http://www.qedeq.org | |
4 | * | |
5 | * Copyright 2000-2006, Michael Meyling <mime@qedeq.org>. | |
6 | * | |
7 | * "Hilbert II" is free software; you can redistribute | |
8 | * it and/or modify it under the terms of the GNU General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | */ | |
17 | ||
18 | package org.qedeq.kernel.utility; | |
19 | ||
20 | ||
21 | /** | |
22 | * A collection of useful static methods for equality. | |
23 | * | |
24 | * @version $Revision: 1.4 $ | |
25 | * @author Michael Meyling | |
26 | */ | |
27 | public final class EqualsUtility { | |
28 | ||
29 | /** | |
30 | * Constructor, should never be called. | |
31 | */ | |
32 | 0 | private EqualsUtility() { |
33 | // don't call me | |
34 | } | |
35 | ||
36 | /** | |
37 | * Compare two objects, each of them could be <code>null</code>. | |
38 | * | |
39 | * @param a First parameter. | |
40 | * @param b Second parameter. | |
41 | * @return Are <code>a</code> and <code>b</code> equal? | |
42 | */ | |
43 | 3251177 | public static boolean equals(final Object a, final Object b) { |
44 | 3251177 | if (a == null) { |
45 | 1974 | if (b == null) { |
46 | 1797 | return true; |
47 | } | |
48 | 177 | return false; |
49 | } | |
50 | 3249203 | return a.equals(b); |
51 | } | |
52 | ||
53 | } |
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