Java Advanced Java - Technical Questions and Answers

41.	What is the difference between a MenuItem and a CheckboxMenuItem?
	Answer: The CheckboxMenuItem class extends the MenuItem class to support a menu item that may be checked or unchecked. Workspace Report errors ... Name : Email: View Answer

42.	What is a task's priority and how is it used in scheduling?
	Answer: A task's priority is an integer value that identifies the relative order in which it should be executed with respect to other tasks. The scheduler attempts to schedule higher priority tasks before lower priority tasks. Workspace Report errors ... Name : Email: View Answer

43.	What class is the top of the AWT event hierarchy?
	Answer: The java.awt.AWTEvent class is the highest-level class in the AWT event-class hierarchy. Workspace Report errors ... Name : Email: View Answer

44.	When a thread is created and started, what is its initial state?
	Answer: A thread is in the ready state after it has been created and started. Workspace Report errors ... Name : Email: View Answer

45.	Can an anonymous class be declared as implementing an interface and extending a class?
	Answer: An anonymous class may implement an interface or extend a superclass, but may not be declared to do both. Workspace Report errors ... Name : Email: View Answer

46.	What is the immediate superclass of Menu?
	Answer: MenuItem. Workspace Report errors ... Name : Email: View Answer

47.	What is the purpose of finalization?
	Answer: The purpose of finalization is to give an unreachable object the opportunity to perform any cleanup processing before the object is garbage collected. Workspace Report errors ... Name : Email: View Answer

48.	Which class is the immediate superclass of the MenuComponent class?
	Answer: Object. Workspace Report errors ... Name : Email: View Answer

49.	What invokes a thread's run() method?
	Answer: After a thread is started, via its start() method or that of the Thread class, the JVM invokes the thread's run() method when the thread is initially executed. Workspace Report errors ... Name : Email: View Answer

50.

What is the difference between the Boolean & operator and the && operator?