Mercurial > jdk8-mips64-public > nashorn / annotate
docs/source/javaarray.js@b1a7da25b547 (annotated)
docs/source/javaarray.js
Wed, 27 Apr 2016 01:36:41 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:36:41 +0800
- changeset 0
- b1a7da25b547
- child 952
- 6d5471a497fb
- permissions
- -rw-r--r--
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/nashorn/
changeset: 1034:4b9cc65dd24d
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * |
| aoqi@0 | 4 | * Redistribution and use in source and binary forms, with or without |
| aoqi@0 | 5 | * modification, are permitted provided that the following conditions |
| aoqi@0 | 6 | * are met: |
| aoqi@0 | 7 | * |
| aoqi@0 | 8 | * - Redistributions of source code must retain the above copyright |
| aoqi@0 | 9 | * notice, this list of conditions and the following disclaimer. |
| aoqi@0 | 10 | * |
| aoqi@0 | 11 | * - Redistributions in binary form must reproduce the above copyright |
| aoqi@0 | 12 | * notice, this list of conditions and the following disclaimer in the |
| aoqi@0 | 13 | * documentation and/or other materials provided with the distribution. |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * - Neither the name of Oracle nor the names of its |
| aoqi@0 | 16 | * contributors may be used to endorse or promote products derived |
| aoqi@0 | 17 | * from this software without specific prior written permission. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| aoqi@0 | 20 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| aoqi@0 | 21 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| aoqi@0 | 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| aoqi@0 | 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| aoqi@0 | 24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| aoqi@0 | 25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| aoqi@0 | 26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| aoqi@0 | 27 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| aoqi@0 | 28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| aoqi@0 | 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| aoqi@0 | 30 | */ |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | // create Java String array of 5 elements |
| aoqi@0 | 33 | var StringArray = Java.type("java.lang.String[]"); |
| aoqi@0 | 34 | var a = new StringArray(5); |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | // Accessing elements and length access is by usual Java syntax |
| aoqi@0 | 37 | a[0] = "scripting is great!"; |
| aoqi@0 | 38 | print(a.length); |
| aoqi@0 | 39 | print(a[0]); |
| aoqi@0 | 40 | |
| aoqi@0 | 41 | // convert a script array to Java array |
| aoqi@0 | 42 | var anArray = [1, "13", false]; |
| aoqi@0 | 43 | var javaIntArray = Java.to(anArray, "int[]"); |
| aoqi@0 | 44 | print(javaIntArray[0]);// prints 1 |
| aoqi@0 | 45 | print(javaIntArray[1]); // prints 13, as string "13" was converted to number 13 as per ECMAScript ToNumber conversion |
| aoqi@0 | 46 | print(javaIntArray[2]);// prints 0, as boolean false was converted to number 0 as per ECMAScript ToNumber conversion |
| aoqi@0 | 47 | |
| aoqi@0 | 48 | // convert a Java array to a JavaScript array |
| aoqi@0 | 49 | var File = Java.type("java.io.File"); |
| aoqi@0 | 50 | var listCurDir = new File(".").listFiles(); |
| aoqi@0 | 51 | var jsList = Java.from(listCurDir); |
| aoqi@0 | 52 | print(jsList); |
