Dont' worry!. These are not included in the SCJP objectives. All you have to know is that Socket.accept() and MediaTracker.waitForId() are synchronous methods and block the current thread. Checkout the API documentation for these classes and pay particular attention to the two methods. That should be sufficient.. Good luck, ------------------ Ajith Kallambella M. Sun Certified Programmer for the Java�2 Platform. IBM Certified Developer - XML and Related Technologies, V1.
Open Group Certified Distinguished IT Architect. Open Group Certified Master IT Architect. Sun Certified Architect (SCEA).