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Js call Applet function with parameters problem

Hello all,

Thank you for your time.
I am in need of calling a java applet function from a JS function, that much I am able to do so far but if I need to pass a parameter to the function then I keep getting:
"java.lang.IllegalArgumentException: No method found matching name FileChecker and arguments [java.lang.String]]."
The JS funtion is sending a String and the Applet function is set to receive a String parameter so I dont know what could be wrong.

I tried following the guidance of http://www.woodger.ca/js_jvint.htm but did not work on my end.

Please note, the function without passing any parameter is working fine.

What could be wrong here??

// JS part:
<script type="text/javascript">
function testJava()
{
	var sInput = document.frmJava.input.value;
	var sFile = document.FileChecker.FileChecker(sInput);
	alert(sFile);
}
</script>
 
 
//
// Java function
public String FileChecker(java.lang.String sFile) 
{
	return "Ok I got the parameter: " + sFile;
}

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CEHJ

Did you name the applet 'FileChecker' in your html?

bugada

This error happens beacause in your applet class FileChecker there is'nt a corrisponding method FileChecker.
If your goal is to access the contructor, then you can't. You must call a public method.

Something like that

/* frontend side */
 
function testJava()
{
        var sInput = document.frmJava.input.value;
        var sFile = document.FileChecker.getFile(sInput);
        alert(sFile);
}
 
/* in your java class, assuming a string type return value */
 
public class FileChecker ... {
 
   public String getFile(String input) {
      ...
      return theFile;
   }
}

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CEHJ

Also make sure you're using the very latest version of the applet - you might need to clear the cache to do that

mespinozae

ASKER

@CEHJ: Yeap, I did name the applet like that:

@bugada: I have my class named like that (and I recompile every time I test it to make sure I get the latest changes right)

Still no luck..

// html
<APPLET codebase="" name="FileChecker" id="FileChecker" archive="....

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bugada

Please reread carefully my post, and if yua have doubts take a look at this page:

http://www.rgagnon.com/javadetails/java-0170.html

ASKER CERTIFIED SOLUTION

bugada

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CEHJ

It certainly *looks* like a ctor but isn't - it returns String. Method names should be in camel case

mespinozae

ASKER

@bugada: Of course!!! Im sorry I didnt read carefully your message, that was the problem! I hadnt realized my method name was also the class name so it of course turned out to be the constructor... silly me!

Thank you both very much for you help!

bugada

If it isn't a contructor, it's really a BAD name for a java getter method.