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What are checked exceptions?
What are checked exceptions? Checked exception are those which the Java compiler forces you to catch. e.g. IOException are checked Exceptions. 2013-05-28, 1875👍, 0💬

Explain the new Features of JDBC 2.0 Core API?
Explain the new Features of JDBC 2.0 Core API? The JDBC 2.0 API includes the complete JDBC API, which includes both core and Optional Package API, and provides inductrial-strength database computing capabilities. New Features in JDBC 2.0 Core API: Scrollable result sets- using new methods in the Res... 2013-02-26, 1873👍, 0💬

What is Session Facade pattern?
What is Session Facade pattern? Session facade is one design pattern that is often used while developing enterprise applications. It is implemented as a higher level component (i.e.: Session EJB), and it contains all the iteractions between low level components (i.e.: Entity EJB). It then provides a... 2013-03-15, 1872👍, 0💬

How are this () and super () used with constructors?
How are this () and super () used with constructors? this() is used to invoke a constructor of the same class. super() is used to invoke a superclass constructor. 2012-12-26, 1871👍, 0💬

If you're overriding the method equals() of an object, which other method you might also consider?
If you're overriding the method equals() of an object, which other method you might also consider? hashCode() 2013-04-15, 1869👍, 0💬

Name few Garbage collection algorithms?
Name few Garbage collection algorithms? Here they go: Mark and Sweep Reference counting Tracing collectors Copying collectors Heap compaction Mark-compact collectors 2013-03-20, 1868👍, 0💬

What are class members and Instance members?
What are class members and Instance members? Any global members(Variables, methods etc.) which are static are called as Class level members and those which are non-static are called as Instance level members. 2013-03-19, 1867👍, 0💬

Can an unreachable object become reachable again?
Can an unreachable object become reachable again? An unreachable object may become reachable again. This can happen when the object's finalize() method is invoked and the object performs an operation which causes it to become accessible to reachable objects. 2013-01-28, 1866👍, 0💬

Can an unreachable object become reachable again?
Can an unreachable object become reachable again? An unreachable object may become reachable again. This can happen when the object's finalize() method is invoked and the object performs an operation which causes it to become accessible to reachable objects. 2013-06-17, 1863👍, 0💬

How is static Synchronization different form non-static synchronization?
How is static Synchronization different form non-static synchronization? When Synchronization is applied on a static Member or a static block, the lock is performed on the Class and not on the Object, while in the case of a Non-static block/member, lock is applied on the Object and not on class. [Tr... 2013-03-19, 1863👍, 0💬

How can we make a class Singleton
How can we make a class Singleton A) If the class is Serializable class Singleton implements Serializable { private static Singleton instance; private Singleton() { } public static synchronized Singleton getInstance() { if (instance == null) instance = new Singleton(); return instance; } /** If the ... 2013-03-18, 1863👍, 0💬

Which methods of Serializable interface should I implement?
Which methods of Serializable interface should I implement? The serializable interface is an empty interface, it does not contain any methods. So we do not implement any methods. 2013-05-20, 1862👍, 0💬

How are this() and super() used with constructors?
How are this() and super() used with constructors? This() is used to invoke a constructor of the same class. super() is used to invoke a superclass constructor. 2013-06-13, 1860👍, 0💬

What is a Throughput Collector?
What is a Throughput Collector? The throughput collector is a generational collector similar to the default collector but with multiple threads used to do the minor collection. The major collections are essentially the same as with the default collector. By default on a host with N CPUs, the through... 2013-03-25, 1857👍, 0💬

What are tag interfaces?
What are tag interfaces? Tag interface is an alternate name for marker interface. 2013-03-12, 1832👍, 0💬

How does a try statement determine which catch clause should be used to handle an exception?
How does a try statement determine which catch clause should be used to handle an exception? When an exception is thrown within the body of a try statement, the catch clauses of the try statement are examined in the order in which they appear. The first catch clause that is capable of handling the e... 2013-06-15, 1828👍, 0💬

Can we force Garbage collection?
Can we force Garbage collection? java follows a philosophy of automatic garbage collection, you can suggest or encourage the JVM to perform garbage collection but you can not force it. Once a variable is no longer referenced by anything it is available for garbage collection. You can suggest garbage... 2013-03-22, 1828👍, 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