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

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 java.util.regex.Pattern;`
13 |  | ``
14 |  | `/**`
15 |  | `* Contains general-purpose utility functions.`
16 |  | `*`
17 |  | `* @author Scott White`
18 |  | `* @author Joshua O'Madadhain`
19 |  | `*/`
20 | 0 | `public class GeneralUtils {`
21 |  | `private static final int K = 10; // M==1024`
22 |  | `private static final int INT_SIZE = 32;`
23 |  | `private static final int KnuthsAValue = (int) 2654435769L;`
24 |  | ``
25 | 72 | `private static final Pattern IS_NUMERIC = Pattern.compile("\\d*\\.?\\d*");`
26 |  | ``
27 |  | `public static int hash(int value)`
28 |  | `{`
29 | 8846359 | `return (value * KnuthsAValue) >>> (INT_SIZE - K);`
30 |  | `}`
31 |  | ``
32 |  | `public static boolean isNumeric(String s)`
33 |  | `{`
34 | 0 | `return s.length() > 0 && IS_NUMERIC.matcher(s).matches();`
35 |  | `}`
36 |  | `}`

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