I rewrite this:

<APPLET code="first.class" name="first" width=400 height=100></APPLET
<APPLET code="second.class" archive="second.jar" neme="second" width=1
height=1></APPLET>

I set in the first class:

public void finish()
{this.finish=true;}

...in the second one:

try
{
 AppletContext ac = getAppletContext();
 first f=(first)ac.getApplet("first");
 f.fatto();
}
catch (Exception e)
{System.out.println("Error "+e);}

(as the example at http://www.mokabyte.it/1999/05/AppletNoFrame.htm)
But the result is the following:

Error java.lang.ClassCastException: first
(JVM Microsoft 1.1.4)
Error java.security.AccessControlException: access denied
(java.util.PropertyPermission java.home read)
(JVM SUN 1.5.0_02)

How can I access public methods of first applet from second, without signing
applet?

This is rigth, but my problem is that many user of Internet have only
Microsoft JVM, and I think that many of them want not install SUN Java only
for visualize an applet on a website.
I need this work with all version of Java (from 1.1 to 1.5).

I find two differents methods for call, from an applet, a method of another
applet of the same html page, but they work only if I have two class files;
I, instead, have a class file and a jar one, and another the following
methods don't properly work.

The result is always the same: from the init of main class of the jar I find
a class named 'first' but the JVM don't recognize it as instance of first
(then, I cannot apply his methods).

HELP!

1)
//**************************************************
Enumeration appletList=getAppletContext().getApplets();
while (appletList.hasMoreElements())
{
 Applet applet=(Applet)appletList.nextElement();
 if (applet instanceof first)
  {
   System.out.println("I find the first class");
   ((first)applet).mymethod();
  }
 else
  {
   if (applet instanceof second)
    {
     System.out.println("I find second class");
    }
   else
    {
     System.out.println("This isn't first or second class");
    }
  }
}
//**************************************************
2)
//**************************************************
Applet a=null;
String nome="first";
a=getAppletContext().getApplet(nome);
if (a!=null)
{
 if (!(a instanceof first))
  {
   System.out.println("I find an applet named "+nome+", but it isn't an
object of type 'first'.\n");
  }
 else
  {
   System.out.println("I find an applet named "+nome+"; it is that you
search.\n");
   ((first)a).mymethod();
  }
}
else
{
 System.out.println("I haven't find any applet named "+nome+".\n");
}

//**************************************************