Problem calling Java from PHP script

I am working on windows. I am running PHP (5.1.3) scripts on Tomcat using PHP/Java bridge. Here is my simple code

//test.php
<?php
require_once("java\Java.inc");
$systemInfo = new Java("Test");
print $systemInfo->foo();
?>

//test.java
class Test
{
 public void foo()
 {
  System.out.println("hello php");
 }
}

Test.class is in the same folder as test.php. But the php file is not able to locate the test class and I get the following error -

Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: CreateInstance failed: new Test. 

If I use a standard class like below. It works -

<?php
require_once("java\Java.inc");
$systemInfo = new J开发者_如何学编程ava("java.lang.System");
print "Total seconds since January 1, 1970: 
".$systemInfo->currentTimeMillis();
?>

What should I do?

1)Should I copy my class to the standard location where all Java classes are kept. (What is this location?)

2) Do some changes in the php.ini file

have you set the following attribute in php.ini?

[java]
java.class.path="/path/to/folder/containing/Test"

Also, use a package (like com.jack.Test) when creating classes. It is just convention, but you'll find that it makes a lot of sense once you're creating entire projects