Advanced Java - Java Programming Interview Questions and Answers | LucentBlackBoard

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21.	What is the difference between yielding and sleeping?
	When a task invokes its yield() method, it returns to the ready state. When a task invokes its sleep()method, it returns to the waiting state.

22.	Which java.util classes and interfaces support event handling?
	The EventObject class and the EventListener interface support event processing.

23.	Is sizeof a keyword?
	The sizeof operator is not a keyword.

24.	What are wrapped classes?
	Wrapped classes are classes that allow primitive types to be accessed as objects.

25.	Does garbage collection guarantee that a program will not run out of memory?
	Garbage collection does not guarantee that a program will not run out of memory. It is possible for programs to use up memory resources faster than they are garbage collected. It is also possible for programs to create objects that are not subject to garbage collection.

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