Object: Wait - Notify

Object

Avoiding sleep() and other inefficiencies with wait( ), notify( ), and notifyAll( ):

In using the term monitor, one can think of a controler.

• wait( ) - the calling thread gives up the monitor and go to sleep until some other thread enters the same monitor and calls notify( ).
   
• notify( ) - wakes up the first thread that called wait( ) on the same object.
   
• notifyAll( ) - wakes up all the threads that called wait( ) on the same object.

Notes:

• Using this technology, Threads can be given priority the highest running first.
  
• There are timed versions of wait( ) , giving the period of time to wait as an argument.