Java Advanced Java - Technical Questions and Answers

51.	Name three subclasses of the Component class.
	Answer: Box.Filler, Button, Canvas, Checkbox, Choice, Container, Label, List, Scrollbar, or TextComponent. Workspace Report errors ... Name : Email: View Answer

52.	What is the GregorianCalendar class?
	Answer: The GregorianCalendar class provides support for traditional Western calendars. Workspace Report errors ... Name : Email: View Answer

53.	Which Container method is used to cause a container to be laid out and redisplayed?
	Answer: validate() method is used to cause a container to be laid out and redisplayed. Workspace Report errors ... Name : Email: View Answer

54.	What is the purpose of the Runtime class?
	Answer: The purpose of the Runtime class is to provide access to the Java runtime system. Workspace Report errors ... Name : Email: View Answer

55.	How many times may an object's finalize() method be invoked by the garbage collector?
	Answer: An object's finalize() method may only be invoked once by the garbage collector. Workspace Report errors ... Name : Email: View Answer

56.	What is the purpose of the finally clause of a try-catch-finally statement?
	Answer: The finally clause is used to provide the capability to execute code no matter whether or not an exception is thrown or caught. Workspace Report errors ... Name : Email: View Answer

57.	What is the argument type of a program's main() method?
	Answer: A program's main() method takes an argument of the String[] type. Workspace Report errors ... Name : Email: View Answer

58.	Which Java operator is right associative?
	Answer: The = operator is right associative. Workspace Report errors ... Name : Email: View Answer

59.	Can a double value be cast to a byte?
	Answer: Yes, a double value can be cast to a byte. Workspace Report errors ... Name : Email: View Answer

60.	What must a class do to implement an interface?
	Answer: It must provide all of the methods in the interface and identify the interface in its implements clause. Workspace Report errors ... Name : Email: View Answer