# Coverage details for edu.uci.ics.jung.utils.Pair

Line | Hits | Source
--- | --- | ---
1 |  | `/*`
2 |  | `* Copyright (c) 2003, the JUNG Project and the Regents of the University`
3 |  | `* of California`
4 |  | `* All rights reserved.`
5 |  | `*`
6 |  | `* This software is open-source under the BSD license; see either`
7 |  | `* "license.txt" or`
8 |  | `* http://jung.sourceforge.net/license.txt for a description.`
9 |  | `*/`
10 |  | `package edu.uci.ics.jung.utils;`
11 |  | ``
12 |  | `import edu.uci.ics.jung.exceptions.FatalException;`
13 |  | ``
14 |  | `/**`
15 |  | `* Stores a pair of values together. Access either one by directly`
16 |  | `* getting the fields. Pairs are not mutable, respect <tt>equals</tt>`
17 |  | `* and may be used as indices.<p>`
18 |  | `* Note that they do not protect from malevolent behavior: if one or another`
19 |  | `* object in the tuple is mutable, then that can be changed with the usual bad`
20 |  | `* effects.`
21 |  | `*`
22 |  | `* @author scott white and Danyel Fisher`
23 |  | `*/`
24 |  | `final public class Pair {`
25 |  | `private final Object value1;`
26 |  | `private final Object value2;`
27 |  | ``
28 | 407856 | `public Pair(Object value1, Object value2) {`
29 | 407856 | `if ( value1 == null || value2 == null)`
30 | 0 | `throw new FatalException("A Pair can't hold nulls.");`
31 | 407856 | `this.value1 = value1;`
32 | 407856 | `this.value2 = value2;`
33 | 407856 | `}`
34 |  | ``
35 |  | `public Object getFirst() {`
36 | 2212045 | `return value1;`
37 |  | `}`
38 |  | `public Object getSecond() {`
39 | 365290 | `return value2;`
40 |  | `}`
41 |  | ``
42 |  | `public boolean equals( Object o ) {`
43 | 100 | `if (o instanceof Pair) {`
44 | 100 | `Pair tt = (Pair) o;`
45 | 100 | `Object first = tt.getFirst();`
46 | 100 | `Object second = tt.getSecond();`
47 | 100 | `return ((first == value1 || first.equals(value1)) &&`
48 |  | `(second == value2 || second.equals(value2)));`
49 |  | `} else {`
50 | 0 | `return false;`
51 |  | `}`
52 |  | `}`
53 |  | ``
54 |  | `public int hashCode()`
55 |  | `{`
56 | 1734762 | `return value1.hashCode() + value2.hashCode();`
57 |  | `}`
58 |  | ``
59 |  | `public String toString()`
60 |  | `{`
61 | 0 | `return "<" + value1.toString() + ", " + value2.toString() + ">";`
62 |  | `}`
63 |  | `}`

this report was generated by version 1.0.5 of jcoverage. visit www.jcoverage.com for updates. | copyright © 2003, jcoverage ltd. all rights reserved. Java is a trademark of Sun Microsystems, Inc. in the United States and other countries.