Exchange arrays between Java applets and JavaScript functions?

In a html-page I want to exchange arrays beetween JavaScript functions and Java applet functions.

I´ve tried the following code, but it returns with the script error
"No Java method matching arguments."

Here are my sample files:

JavaParameterTest.java

import java.applet.*;
public class JavaParameterTest extends Applet
{
      public JavaParameterTest()
      {
      }
      public String Test(String Ar[], int i) {
          return Ar[i];
      }
}

JavaParameterTest.html:

<html>
<head>
<title>JavaParameterTest</title>
<script>
testarray = new Array("Peter","Paul","Mary");
function test() {
  alert(document.JavaParameterTest.Test(testarray(),1));
}
</script>
</head>
<body onload="test();">
<applet
    code=JavaParameterTest.class
    name=JavaParameterTest
 </applet>
</body>
</html>

I there any chance to modify this code, so does it works on IE 3.0 and NS 3.0?

I would appreciate any help.
StephanMAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

NickRS051397Commented:
In the JavaScript you're trying to call a function testarray().
To pass an array use testarray[].
0
StephanMAuthor Commented:
Your proposal is not the right solution, because if I change
the argument for my applet from testarray() to testarray[],
it produces a syntax error in Netscape. Sorry.
0
StephanMAuthor Commented:
Adjusted points to 120
0
garikCommented:
1) JavaScript: add MAYSCRIPT tag to the applet to allow Java access to JavaScript objects; pass testarray as an object (not as function testarray()):
...
<script>
testarray = new Array("Peter","Paul","Mary");
function test() {
      alert(document.JavaParameterTest.Test(testarray,1));
}
</script>
</head>
<body onLoad='test();'>
<hr>
<applet      MAYSCRIPT
    code=JavaParameterTest.class
    name=JavaParameterTest
>
</applet>
...

2) Java: first argument to Test() is JSObject, so you have to import netscape.javascript.*; JSObject can't be casted to String[], but you can use JSObject.getSlot(index) to access individual members of the array:

import java.applet.*;
import netscape.javascript.*;
...
      public String Test(JSObject Ar, int i)
      {
            return (String)Ar.getSlot(i);
      }
...

3. MS IE: Not a chance. LiveConnect technology used here to communicate between Java and JavaScript is created by Netscape, implemented by Netscape, and works only on Netscape. Sorry.
For MS, you have to use MS staff, like Java-COM communications etc.
Wouldn't be nice to get rid of one of these big guys (I don't care which one) so that we could concentrate on contents and not on technical incompatibilities? Just a thought.

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
StephanMAuthor Commented:
Thanks for your response. I´ve checked it and it´s true -
there is in fact no chance to exchange arrays in the ie.

Concentrating on content and not on incompatibilities
would be nice, but I don´t think it will happen.

Over and out, StephanM.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.