Java Blog
This is my blog on java, servlets, JSP and design patterns. This might help you to keep your java knowledge updated and also to prepare for your java interview, sun java certification. Its all there, it is left to you how to use it! I started this blog with a selfish reason, just to keep my java knowledge updated and to keep log of the questions that arise in my mind. Now it has turned out to be a full blown java tutorial site with lots of java interview questions and articles. Good day!
Recent Java Articles:
Yes. It can happen when the Java object’s finalize() method is invoked and the Java object performs an operation which causes it to become accessible to reachable objects.
April 23rd, 2008
Finalization is to give an unreachable Java object the opportunity to perform any cleanup processing before the Java object is garbage collected. It happens when the Java object’s finalize() method is invoked.
April 23rd, 2008
Garbage collection in Java is to discard objects that are no longer needed and to reclaim their resources. A Java object is subject to garbage collection when it is out of scope of the control flow of the program.
April 23rd, 2008
No. Java Programs may use up memory resources faster than they are garbage collected. A Java program can create objects that are not subject to garbage collection.
April 23rd, 2008
Methods of a Java interface are implicitly abstract and cannot have implementations. A Java abstract class can have instance methods that implements a default behavior.
Variables declared in a Java interface is by default final. A Java abstract class may contain non-final variables.
Memebers of a Java interface are public by default. A Java abstract class can have the usual flavors [...]
April 23rd, 2008
When a Java object implements the referenced interface it can be cast to the Java interface reference.
April 23rd, 2008
A java class containing all the methods as abstract is called an interface. A method that has no implementation and which is expected to be implemented by a subclass is called an abstract method. Java interface can contain constants. When an interface needs to be instantiated it should be implemented by a class and all [...]
April 23rd, 2008
A filter is used to dynamically intercept request and response objects and change or use the data present in them. Filters should be configured in the web deployment descriptor. Filters can perform essential functions like authentication blocking, logging, content display style conversion, etc.
April 19th, 2008
An abstract class cannot be instantiated directly. An abstract class has to be sub-classed first and then instantiated. Only then the method defined in the abstract class can be invoked.
April 14th, 2008
A class containing atleast one abstract method is called an abstract class. A method that has no implementation and which is expected to be implemented by a subclass is called an abstract method. An Abstract class cannot be instantiated. It is expected to be extended by a subclass. An abstract class may contain static variables [...]
April 14th, 2008
