s> Hello,

s> I am making  a trojan using RMI.
s> I want that when client  click close  button then server's window  will
s> close .

Window o = new Window();
o.open();

User u = new User("salman");
u.open(o);
u.jump();

u.close(o);

s> So there is any function  or class  that can shutdown  or restart
s> computer?