1 /*
   2  * Copyright (c) 2014, 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
   6  * are met:
   7  *
   8  *   - Redistributions of source code must retain the above copyright
   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  *
  15  *   - Neither the name of Oracle nor the names of its
  16  *     contributors may be used to endorse or promote products derived
  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,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 
  32 // nashorn supports for..each extension supported
  33 // by Mozilla. See also
  34 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for_each...in
  35 
  36 var strs = [ "hello", "world" ];
  37 for each (str in strs)
  38     print(str);
  39 
  40 // create a java int[] object
  41 var JArray = Java.type("int[]");
  42 var arr = new JArray(10);
  43 
  44 // store squares as values
  45 for (i in arr)
  46     arr[i] = i*i;
  47 
  48 // for .. each on java arrays
  49 print("squares");
  50 for each (i in arr)
  51     print(i);
  52 
  53 var System = Java.type("java.lang.System");
  54 
  55 // for..each on java Iterables
  56 // print System properties as name = value pairs
  57 print("System properties");
  58 for each (p in System.properties.entrySet()) {
  59     print(p.key, "=", p.value);
  60 }
  61 
  62 // print process environment vars as name = value pairs
  63 print("Process environment");
  64 for each (e in System.env.entrySet()) {
  65     print(e.key, "=", e.value);
  66 }