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Contrast OOP and SOA. What are tenets of each
Contrast OOP and SOA. What are tenets of each Service Oriented Architecture. In SOA you create an abstract layer that your applications use to access various “services” and can aggregate the services. These services could be databases, web services, message queues or other sources. The Service...
2014-02-21, 2545👍, 0💬

What is the GregorianCalendar class?
What is the GregorianCalendar class? The GregorianCalendar provides support for traditional Western calendars.
2012-10-19, 2545👍, 0💬

What is the purpose of finalization?
What is the purpose of finalization? The purpose of finalization is to give an unreachable object the opportunity to perform any cleanup processing before the object is garbage collected.
2012-10-17, 2545👍, 0💬

Which java.util classes and interfaces support event handling?
Which java.util classes and interfaces support event handling? The EventObject class and the EventListener interface support event processing.
2012-09-28, 2545👍, 0💬

What is the difference between the &gt&gt and &gt&gt&gt operators?
What is the difference between the &gt&gt and &gt&gt&gt operators? The &gt&gt operator carries the sign bit when shifting right. The &gt&gt&gt zero-fills bits that have been shifted out.
2012-09-26, 2543👍, 0💬

Name three Component subclasses that support painting.
Name three Component subclasses that support painting. The Canvas, Frame, Panel, and Applet classes support painting.
2012-10-04, 2542👍, 0💬

What are wrapper classes?
What are wrapper classes? Wrapper classes are classes that allow primitive types to be accessed as objects.
2012-10-01, 2539👍, 0💬

What modifiers may be used with an inner class that is a member of an outer class?
What modifiers may be used with an inner class that is a member of an outer class? A (non-local) inner class may be declared as public, protected, private, static, final, or abstract.
2012-09-25, 2539👍, 0💬

How are commas used in the initialization and iteration parts of a for statement?
How are commas used in the initialization and iteration parts of a for statement? Commas are used to separate multiple statements within the initialization and iteration parts of a for statement.
2012-10-31, 2538👍, 0💬

In the Servlet 2.4 specification SingleThreadModel has been deprecated, why?
In the Servlet 2.4 specification SingleThreadModel has been deprecated, why? Because it is not practical to have such model. Whether you set isThreadSafe to true or false, you should take care of concurrent client requests to the JSP page by synchronizing access to any shared objects defined at the ...
2013-07-16, 2537👍, 0💬

Describe synchronization in respect to multithreading.
Describe synchronization in respect to multithreading. With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchonization, it is possible for one thread to modify a shared variable while another thread is in the pro...
2013-04-23, 2537👍, 0💬

What is the basic difference between the 2 approaches to exception handling.
520. What is the basic difference between the 2 approaches to exception handling. 1. try catch block and 2. specifying the candidate exceptions in the throws clause? When should you use which approach? In the first approach as a programmer of the method, you urself are dealing with the exception. Th...
2013-06-03, 2535👍, 0💬

Which Container method is used to cause a container to be laid out and redisplayed?
Which Container method is used to cause a container to be laid out and redisplayed? validate()
2012-10-22, 2535👍, 0💬

When is an object subject to garbage collection?
When is an object subject to garbage collection? An object is subject to garbage collection when it becomes unreachable to the program in which it is used.
2013-01-29, 2534👍, 0💬

How many times may an object's finalize() method be invoked by the garbage collector?
How many times may an object's finalize() method be invoked by the garbage collector? An object's finalize() method may only be invoked once by the garbage collector.
2012-10-23, 2534👍, 0💬

What are stored procedures? How is it useful?
What are stored procedures? How is it useful? A stored procedure is a set of statements/commands which reside in the database. The stored procedure is pre-compiled and saves the database the effort of parsing and compiling sql statements everytime a query is run. Each database has its own stored pro...
2013-07-17, 2533👍, 0💬

Does a class inherit the constructors of its superclass?
Does a class inherit the constructors of its superclass? A class does not inherit constructors from any of its super classes.
2012-11-26, 2533👍, 0💬

What is the Locale class?
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.
2013-06-11, 2532👍, 0💬

What are the different ways to handle exceptions?
What are the different ways to handle exceptions? There are two ways to handle exceptions, 1. By wrapping the desired code in a try block followed by a catch block to catch the exceptions. and 2. List the desired exceptions in the throws clause of the method and let the caller of the method hadle th...
2013-05-31, 2532👍, 0💬

What is the SimpleTimeZone class?
What is the SimpleTimeZone class? The SimpleTimeZone class provides support for a Gregorian calendar.
2012-11-16, 2532👍, 0💬

How do I prevent the output of my JSP or Servlet pages from being cached by the browser?
How do I prevent the output of my JSP or Servlet pages from being cached by the browser? You will need to set the appropriate HTTP header attributes to prevent the dynamic content output by the JSP page from being cached by the browser. Just execute the following scriptlet at the beginning of your J...
2013-07-23, 2531👍, 0💬

If a variable is declared as private, where may the variable be accessed?
If a variable is declared as private, where may the variable be accessed? A private variable may only be accessed within the class in which it is declared.
2012-11-07, 2530👍, 0💬

Where and how can you use a private constuctor.
Where and how can you use a private constuctor. Private constructor can be used if you do not want any other class to instanstiate it by using new. The instantiation is done from a static public method, which is used when dealing with the factory method pattern.
2012-08-17, 2530👍, 0💬

What is the % operator?
What is the % operator? It is referred to as the modulo or remainder operator. It returns the remainder of dividing the first operand by the second operand.
2012-11-09, 2528👍, 0💬

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