javaarray.js revision 970:f82b83cf73ae 
1/*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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9 *     notice, this list of conditions and the following disclaimer.
10 *
11 *   - Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
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17 *     from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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30 */
31
32// create Java String array of 5 elements
33var StringArray = Java.type("java.lang.String[]");
34var a = new StringArray(5);
35
36// Accessing elements and length access is by usual Java syntax
37a[0] = "scripting is great!";
38print(a.length);
39print(a[0]);
40
41// convert a script array to Java array
42var anArray = [1, "13", false];
43var javaIntArray = Java.to(anArray, "int[]");
44print(javaIntArray[0]);// prints 1
45print(javaIntArray[1]); // prints 13, as string "13" was converted to number 13 as per ECMAScript ToNumber conversion
46print(javaIntArray[2]);// prints 0, as boolean false was converted to number 0 as per ECMAScript ToNumber conversion
47
48// convert a Java array to a JavaScript array
49var File = Java.type("java.io.File");
50var listCurDir = new File(".").listFiles();
51var jsList = Java.from(listCurDir);
52print(jsList);
53