Netscape.javascript.JSObject without applets - Urgent!

Question

Hi,
I need to evaluate some Javascript expressions inside my java code... BUT my code is not inside an Applet class. Does anyone know how to do it?
I chose to use the netscape.javascript package, it work well inside an applet.. but my application doesn't run inside an applet. When I try to run it inside a standalone application it fails (even if the application extends from the Applet class).
Here is part of the code:
public class Applet1 extends Applet {
public void init() {
try {
String out;
JSObject win = JSObject.getWindow(this);
out=win.eval("2+3;").toString();
jLabel1.setText(out);
System.out.print(out);
public static void main(String[] args){
Applet1 app=new Applet1();
app.init();
The code runs perfect inside Internet explorer, but it crashes when running in standalone mode.
Thanks.

Answer 1

I need to evaluate some Javascript expressions inside
my java code... BUT my code is not inside an Applet
class. Does anyone know how to do it?Haven't actually used it, but Mozilla has the Rhino JavaScript interpreter:
http://www.mozilla.org/rhino/
Also you could Google for FESI, which is an ECMAScript interpreter (basicly an early version of JavaScript that went through the standards process).