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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, 2453👍, 0💬

What if the main method is declared as private?
What if the main method is declared as private? The program compiles properly but at runtime it will give "Main method not public." message. 2013-05-02, 2451👍, 0💬

What happens if an exception is not caught?
What happens if an exception is not caught? An uncaught exception results in the uncaughtException() method of the thread's ThreadGroup being invoked, which eventually results in the termination of the program in which it is thrown. 2013-01-15, 2450👍, 0💬

What is the difference between an Interface and an Abstract class?
What is the difference between an Interface and an Abstract class? An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface ... 2013-04-22, 2448👍, 0💬

What is the test coverage?
From the following code, atleast how many test cases are needed to guarantee 100%coverage Input Number_of_Coins Total=0 While Number_of_Coins>0 Input Value_of_Coin Total=Total + Value_of_Coin Number_Of_Coins=Number_of_Coin s- 1 End Loop Print "Your coins are worth" & Total What is the correct op... 2014-11-24, 2447👍, 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, 2447👍, 0💬

Is Java code slower than native code?
Is Java code slower than native code? Not really. As a platform-independent environment, the Java platform can be a bit slower than native code. However, smart compilers, well-tuned interpreters, and just-in-time bytecode compilers can bring performance close to that of native code without threateni... 2013-02-22, 2445👍, 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, 2444👍, 0💬

Is there a way I can set the inactivity lease period on a per-session basis?
Is there a way I can set the inactivity lease period on a per-session basis? Typically, a default inactivity lease period for all sessions is set within your JSPengine admin screen or associated properties file. However, if your JSP engine supports the Servlet 2.1 API, you can manage the inactivity ... 2013-07-31, 2443👍, 0💬

What is synchronization and why is it important?
What is synchronization and why is it important? With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchronization, it is possible for one thread to modify a shared object while another thread is in the process of... 2013-06-05, 2442👍, 0💬

Which class is the immediate superclass of the Container class?
Which class is the immediate superclass of the Container class? Component 2012-12-17, 2442👍, 0💬

When to Use the Concurrent Low Pause Collector?
When to Use the Concurrent Low Pause Collector? Use the concurrent low pause collector if your application would benefit from shorter garbage collector pauses and can afford to share processor resources with the garbage collector when the application is running. Typically applications which have a r... 2013-03-27, 2441👍, 0💬

What is the Set interface?
What is the Set interface? The Set interface provides methods for accessing the elements of a finite mathematical set. Sets do not allow duplicate elements. 2013-01-03, 2441👍, 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, 2441👍, 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, 2441👍, 0💬

Why is catch(Exception) almost always a bad idea?
Why is catch(Exception) almost always a bad idea? Well, if at that point you know that an error has occurred, then why not write the proper code to handle that error instead of passing a new Exception object to the catch block? Throwing your own exceptions signifies some design flaws in the project. 2014-02-24, 2440👍, 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, 2440👍, 0💬

What is the Dictionary class?
What is the Dictionary class? The Dictionary class provides the capability to store key-value pairs. 2012-11-08, 2439👍, 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, 2438👍, 0💬

What class allows you to read objects directly from a stream?
What class allows you to read objects directly from a stream? The ObjectInputStream class supports the reading of objects from input streams. 2012-12-25, 2437👍, 0💬

What is the SimpleTimeZone class?
What is the SimpleTimeZone class? The SimpleTimeZone class provides support for a Gregorian calendar. 2012-11-16, 2437👍, 0💬

What is a layout manager?
What is a layout manager? A layout manager is an object that is used to organize components in a container. 2013-01-16, 2436👍, 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, 2436👍, 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, 2435👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML