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Available Memory
How to find out how much memory is available?
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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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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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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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What is marker interface
sreenivasgowd
- Sep 5th, 2009
An interface does not contain any methods and giving the chance to programres for creating of their own logic in their own methods.Examples:java.io.Serializablejava.lang.Cronablejava.rmi.Remote
Buddhadev Dasgupta
- Jan 19th, 2006
Marker interface are also know as tag interface.Marker interface don't have any method,this interface are used as tag only.for example suppose we have some product from different country , and every p...
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What is Hybernate Sprig?
Its Frame Work for Persistence
sreenivasgowd
- Sep 5th, 2009
- Hibernate is ORM software (object rational mapping), it can be used to develop
persistence logic to interact with database for performing persistence operations.-
Spring is a framework software to develop enterprise based business logic and it deals with complex logic.rakesh
- Jul 17th, 2007
It is a tool used to map the pojo objects with the database objects. It also reduces the burden of coding since we do not specify the java database connectivity. The hybernate creates internal mapping.
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What is difference between == and & operators
sreenivasgowd
- Sep 5th, 2009
1. == operator can be used to check two operands can be equal or not 2. & means address operator it stores the address of a variable Ex: 1. a=20;b=20; if (a==b) System.out.println("both ...
chinna_punna8
- Jan 17th, 2006
"==" is a logical operator and is used to compare two operands."&" is bitwise AND operator .
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What is the password and userid for the admin console of sun application server...
xsunil_kumar
- Sep 21st, 2009
Admin is the username and adminadmin is the default password for SUN application server. You need to know the port number on which admin is running. This information you can get from domain.xml file which is under <install-dir>domains/domain1/config.Default admin port is 4848.
vijay
- Oct 21st, 2005
Username is : admintry this without any password. If it doesnt work then give password as admin.I am not sure with this.
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Thin and Bridge Driver
Explain what are Thin Drivers and Bridge Driver in JDBC.
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Portlets
What is Portlets?
jawaharl0207
- Nov 2nd, 2009
Portlets are pluggable user interface software components that are managed and displayed in a web portal. Portal page is displayed as collection of portlet windows, where each portlet window displays ...
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Context Path
What is meant by Context Path and Relative Path?
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Synchronization
What are the disadvantages of Synchronization?
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Session Size Query
What is the maximum data size a Session Object can hold ?
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Cookies Size
What is the maximum data size Cookies can hold ?
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Application Migration
You are the new WebSphere Administrator for a company, and you are asked to migrate an existing application to an alternate environment. This application is managed by the Corporate Services group and is mission critical, there is very little documentation for this application. Describe all of the steps you would use to deploy this application.
esaiesai
- Apr 27th, 2010
Identify the targeted environment's platform.If the targeted env has a different versions of the needed technology (for eg. different or newer versions of JDK, database, deployment paths for stati...
KamleshYadav
- May 27th, 2009
For deployment of an application we need to have WAR & then EAR files generated.1) First we need to generate a war file..2) Secondly, using that war file we need to generate EAR File, which is finally deployable.3) Deploy on the ServerThats it!
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What is initial context point for handling web request in page centric architecture? Is it Jsp page or servlet
nirajthacker
- Sep 26th, 2007
Servlet is initial context point for handling web request.
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How to refresh a webpage automatically
How to refresh a webpage automatically,without using f5 key in key board
bondneoo
- Jun 7th, 2010
This can only be done with JavaScript if it must be done by a command (as in with some sort of link, button, movement, etc.)<meta http-equiv="refresh" content="3;url=http://my.com/pa...
ggajanan
- Jun 6th, 2010
Yes this above tag in your JSP code will auto reload the page itself after 4 seconds. Note: The quotes are avoided for obvious reason.
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Can i call java swing in JSP or Servlet without using Applet?(eg- Suppose i make a frame and i want to popup this frame when i click the button in JSP or Servlet). Please tell me.
gadadhar dalei
- Jul 10th, 2006
How can i convert the jsp file into html file?
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What are inter-process components and intra-process components?
mcafresher.girish
- Jun 24th, 2010
Inter-Process communication means the data sharing between two different processes.where as, in intra-process communication the data shared with in components (methods) of a single process.
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