What are restrictions for an applet

Java Tips
Question: What are restrictions for an applet? What are applets prevented from
doing?
Answer: In general, applets loaded over the net are prevented from reading and
writing files on the client file system, and from making network connections
except to the originating host.
In addition, applets loaded over the net are prevented from starting other
programs on the client. Applets loaded over the net are also not allowed to
load libraries, or to define native method calls. If an applet could define
native method calls, which would give the applet direct access to the
underlying computer.