Java doesn't run under Win98

I wrote a little programm for testing like this:

class test
{
public static void main( String args[])
{
System.out.println("Test");
}
}

I got a error description like:
"Exception in thread main <something> <filename>/<fileextension>"

What had i done wrong? Where is the mistake i had made?

Make sure that you name the file the same as the class with a main method, in your case, test.java.

fx:

javac test.java
java test

/good luck.