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What is taglib?
What's taglib?
sreenivasgowd
- Sep 5th, 2009
Taglib is directory, It contains predefined tags. It looks same as package, package contains predefined classes.
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GetInstance()
Why getInstance() is written after Class.forName( )?
sreenivasgowd
- Sep 5th, 2009
GetInstance() means we are creating object for loading of the class, thats why we are using getInstance() after loading of the class.ex:? Class c=Class.forName("addition");?? c.getInstance();//it creates the object of addition class
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How many threads does a java program have in execution?
1
sreenivasgowd
- Sep 5th, 2009
In every Java program two threads will be activated.One is foreground thread (used for program execution).Second is background thread that is garbage collector.
ajitamitavdas
- Dec 14th, 2005
By default java has only one thread ie main but we can create any child thread from that main thread.
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Available Memory
How to find out how much memory is available?
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what happens if your business exception extends Runtime Exception
The complier thinks that the businness exception is a Runtime exception , It just bypasses without any error message.
krishna_ballabh
- Jul 31st, 2009
Extending the Runtime Exception means you are giving the definition of your exception as System Exception, for each System Exception your container will do a different process, mean what ever transact...
hr1551
- Jul 10th, 2007
It is not recommanded because business exception should be caught in compile time instead of run time.
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How to code a Vertical/Horizontal scroll bar for a Java eclipse application?
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Make EAR File
How to Make EAR File in Weblogic 8.0?
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Application Server
A client has logged a work request stating that he is unable to access an application hosted within the horizontally clustered production environment. Describe how you can confirm which application server the user is being directed?
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Weak Object References
What is Weak Object References?
bkishore2k1
- Mar 12th, 2009
A weak reference is one that does not prevent the referenced object from being garbage collected. You might use them to manage a HashMap to look up a cache of objects. A weak reference is a referenc...
suresh_kumar36
- Mar 11th, 2009
Weak reference objects are those which do not prevent their references from being made finalizable, finalized, and then reclaimed by garbage collection. This means that the object referred to by the w...
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What does Class.forName do?
rhingarajiya
- Mar 6th, 2009
ForName is static method of final Java.lang.Class Class.This method returns the object associated with the class or interface with the given string name. Example:public static Class forName(String classname)It returns classname class object.
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Auto Populate Form Fields
How to Auto Populate Form fields in HTML/JSP page with data retrieved from an Oracle Database?
sachin.jain.mca
- Feb 26th, 2009
with the help of ajax you can easily populate form fields.Step you need to do is 1. Make a servlet that give response in form of XML to HTML form.2. call the servlet fron HTML with the help of XMLHttp...
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If I am creating two objects for a same class then both the objects are not similar why?i,e A obj = new A(); A obj1 = new A();obj.equals(obj1) returns false why?
sachin.jain.mca
- Feb 26th, 2009
Equals method return on the basis of hashcode and if you do not override hashcode and equals method the by default hashcode return int value of object physically address in memory so as when you com...
Parthasarathi.M
- Oct 27th, 2006
In JDK5.0 equals() and == both are returns false.please try this example in JDK5.0public class EqualClass { /** Creates a new instance of EqualClass */ public EqualClass() { } pub...
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Thread Methods
Explain wait(), join(), notify() and sleep() Thread Methods.
lalitsonawane27
- Feb 9th, 2009
Join method is used for joining two thread together Wait method is used if any wait is running then another thread waits.
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Photo Upload
How to upload multiple photos in Java-J2EE?
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DAO and Action Class
How to connect DAO class with Action class?
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Difference between java bean and enterprise bean
What is the difference between java bean and enterprise bean? when will be used java bean and enterprise in real time projects?
rajasekar_muthusamy
- Jan 22nd, 2009
Enterprise Bean:Gives you the facility of security & transcation , state management & reduction of network code. All the above facility will be provided by application server when it is deploy...
Vijay
- Jan 29th, 2007
Java Beans are Non-deployable components, means the state or life of javabean is not controlled by any container.EJB is a deployable component thru application servers...
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