 see an exception like this one:
<blockquote>
<pre>
java.lang.NullPointerException
	at java.lang.Runtime.loadLibrary(Runtime.java)
	at java.lang.System.loadLibrary(System.java)
	at HelloWorld.<clinit>(HelloWorld.java:5)
	at 
java.lang.UnsatisfiedLinkError displayHelloWorld
	at Main.main(Main.java:3)
</pre>
</blockquote>
then you don't have a library path set up. The library path is a list
of directories that the Java runtime system searches when loading libraries.
<a href=_setlibpath.html>Set your library p