How to create and use byte array with javax.script

Question

Can we create primitive arrays like byte array or int array using javax.script?

You either create the array in Java the normal way or you create it in the scripting language. How you do that depends on the language scripted. — Peter Lawrey
– Peter Lawrey, Commented Nov 14, 2012 at 9:30

Tomasz Gawel · Accepted Answer · 2013-05-10 17:17:40Z

7

To create a Java Array of 10 bytes in Mozilla's Rhino:

var buff = java.lang.reflect.Array.newInstance(java.lang.Byte.TYPE, 10)

Notice that java array is different type than native JavScript array - they both can be used in Rhino JavaScript.

answered May 10, 2013 at 17:17

Tomasz Gawel

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Sri Harsha Chilakapati · Accepted Answer · 2012-11-15 16:04:12Z

1

If you are using the JavaScript engine of the package, use

var array = new Array();
array[0] = 1;

I'd recommend a reading through

Java Docs Java6Master Java Scripting Programmer's Guide

edited Nov 15, 2012 at 16:04

answered Nov 15, 2012 at 2:51

Sri Harsha Chilakapati

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1 Comment

Meera Menon Over a year ago

Basically, it needs to be an array of 1024 bytes size. In Java, it used to be byte[] bytes = new byte[1024]; But in javax.script with javascript, I can not find a way to do this.

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