Java EJB Interview questions Part16

54. What is the GregorianCalendar class?
The GregorianCalendar provides support for traditional Western calendars.
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55. What is the SimpleTimeZone class?
The SimpleTimeZone class provides support for a Gregorian calendar.
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56. Which Container method is used to cause a container to be laid out and redisplayed?
validate()
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57. What is the Properties class?
The properties class is a subclass of Hashtable that can be read from or written to a stream. It also provides the capability to specify a set of default values to be used.
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58. What is the purpose of the Runtime class?
The purpose of the Runtime class is to provide access to the Java runtime system.
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59. What is the purpose of the System class?
The purpose of the System class is to provide access to system resources.
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60. What is the purpose of the finally clause of a try-catch-finally statement?
The finally clause is used to provide the capability to execute code no matter whether or not an exception is thrown or caught.
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61. What is the Locale class?
The Locale class is used to tailor program output to the conventions of a particular geographic, political, or cultural region.
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62. What must a class do to implement an interface?
It must provide all of the methods in the interface and identify the interface in its implements clause.
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63. What is an abstract method?
An abstract method is a method whose implementation is deferred to a subclass. Or, a method that has no implementation (an interface of a method).
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