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To what value is a variable of the boolean type automatically initialized?
To what value is a variable of the boolean type automatically initialized? The default value of the boolean type is false. 2013-01-22, 2322👍, 0💬

What is the range of the short type?
What is the range of the short type? The range of the short type is -(2^15) to 2^15 - 1. 2012-10-15, 2322👍, 0💬

What is static in java?
What is static in java? Static means one per class, not one for each object no matter how many instance of a class might exist. This means that you can use them without creating an instance of a class.Static methods are implicitly final, because overriding is done based on the type of the object, an... 2013-05-01, 2321👍, 0💬

What is serialization?
What is serialization? Serialization is a mechanism by which you can save the state of an object by converting it to a byte stream. 2013-05-17, 2320👍, 0💬

What state does a thread enter when it terminates its processing?
What state does a thread enter when it terminates its processing? When a thread terminates its processing, it enters the dead state. 2013-04-09, 2320👍, 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, 2319👍, 0💬

If a class is declared without any access modifiers, where may the class be accessed?
If a class is declared without any access modifiers, where may the class be accessed? A class that is declared without any access modifiers is said to have package access. This means that the class can only be accessed by other classes and interfaces that are defined within the same package. 2012-11-16, 2319👍, 0💬

What is the Vector class?
What is the Vector class? The Vector class provides the capability to implement a growable array of objects 2012-09-25, 2319👍, 0💬

What invokes a thread's run() method?
What invokes a thread's run() method? 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. 2012-10-18, 2318👍, 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, 2316👍, 0💬

Can Java code be compiled to machine dependent executable file?
Can Java code be compiled to machine dependent executable file? Yes. There are many tools out there. If you did so, the generated exe file would be run in the specific platform, not cross-platform. 2013-04-06, 2316👍, 0💬

Which class is the immediate superclass of the MenuComponent class.
Which class is the immediate superclass of the MenuComponent class. Object 2012-10-17, 2316👍, 0💬

What is the Collections API?
What is the Collections API? The Collections API is a set of classes and interfaces that support operations on collections of objects. 2013-04-10, 2315👍, 0💬

What must a class do to implement an interface?
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. 2012-10-26, 2315👍, 0💬

What is your platform's default character encoding?
What is your platform's default character encoding? If you are running Java on English Windows platforms, it is probably Cp1252. If you are running Java on English Solaris platforms, it is most likely 8859_1.. 2013-01-09, 2314👍, 0💬

What does Perl do if you try to exploit the execve(2) race involving setuid scripts?
What does Perl do if you try to exploit the execve(2) race involving setuid scripts? Sends mail to root and exits. It has been said that all programs advance to the point of being able to automatically read mail. While not quite at that point (well, without having a module loaded), Perl does at leas... 2013-09-02, 2313👍, 0💬

What is tunnelling?
What is tunnelling? Tunnelling is a route to somewhere. For example, RMI tunnelling is a way to make RMI application get through firewall. In CS world, tunnelling means a way to transfer data. 2013-04-05, 2313👍, 0💬

Explain different way of using thread?
Explain different way of using thread? The thread could be implemented by using runnable interface or by inheriting from the Thread class. The former is more advantageous, 'cause when you are going for multiple inheritance..the only interface can help. 2013-04-24, 2312👍, 0💬

What is a Concurrent Low Pause Collector?
What is a Concurrent Low Pause Collector? The concurrent low pause collector is a generational collector similar to the default collector. The tenured generation is collected concurrently with this collector. This collector attempts to reduce the pause times needed to collect the tenured generation.... 2013-03-26, 2309👍, 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, 2308👍, 0💬

What is the purpose of garbage collection in Java, and when is it used?
What is the purpose of garbage collection in Java, and when is it used? The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources can be reclaimed and reused. A Java object is subject to garbage collection when it becomes unre... 2013-04-23, 2307👍, 0💬

Which class is the superclass for every class.
Which class is the superclass for every class. Object. 2013-04-11, 2307👍, 0💬

What is the purpose of garbage collection?
What is the purpose of garbage collection? The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources may be reclaimed and reused. 2013-01-11, 2307👍, 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, 2307👍, 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