How to Auto Populate Form fields in HTML/JSP page with data retrieved from an Oracle Database?

sachin.jain.mca

 Profile Answers by sachin.jain.mca Questions by 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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mcafresher.girish

 Profile Answers by mcafresher.girish Questions by 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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Why getInstance() is written after Class.forName( )?

sreenivasgowd

 Profile Answers by sreenivasgowd Questions by 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 Portlets?

jawaharl0207

 Profile Answers by jawaharl0207 Questions by 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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How to count objects of a class ?

Jayesh v Bhatu

• Jul 31st, 2016

Declare a static count variable in and increment in constructor.

For ex:
class A{
static int count=0;
A(){
count++;
}
}

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Ashwinshenoy7

 Profile Answers by Ashwinshenoy7 Questions by Ashwinshenoy7

• May 8th, 2011

There are two parts in this answer PART 1 : General explanationPART 2 : OOPS concept ( JAVA )PART 1 :1) Inheritance is the process by which one object ( Child class or also known as sub class ) a...

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How would we use log4J in our applications? Is it necessary to use log4J applications in our web application?

nabi_alam

 Profile Answers by nabi_alam Questions by nabi_alam

• Mar 30th, 2012

To implement log4j in the web application there are different way. 1.we have to write a common logger class. 2.we have to configure corresponding class in web.xml and 3. we have to configure the prop...

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What design pattern are available for J2EE?

Ramakrishna

• May 19th, 2012

Singleton Design Pattern,Factory,DAO,MVC ,Prototype ..

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Hi friends,Can any one explain me what is the exact difference between web server and web container. How both will work together in web application?

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Ranjith mca  

 Profile Answers by Ranjith mca Questions by Ranjith mca

• Member Since Jan-2011 | Jan 31st, 2011

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Web Server is an implementation of "http" protocol which handles http request and responds. It serves for client and load pages on browser's memory
some of the web servers are
1) Appache tomcat
2) Java web server
3) Jboss
4) Tomcat
In web server 1) 3) 4) only http protocols are implemented.

Web Container
There are two web container JSP and Servlet container, both are internet applications in server side, which comes in three tier architecture these are in second tier 1st and 3rd are client and database server.
JSP and Servlet container are application server
JSP runs on JSP container and servlet runs on servlet container

From this you can get how it what using as web application

Ranjith mca

 Profile Answers by Ranjith mca Questions by Ranjith mca

• Jan 31st, 2011

Web Server is an implementation of "http" protocol which handles http request and responds. It serves for client and load pages on browser's memory some of the web servers are1) Appache tomcat2) J...

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Interviewer asked me this question in a interview. I could not give a clear answer. Can someone please help me to answer this question? Or point me to the websites that talk about How to Design a Good Software System. Thank you very much.

mani.sivapuram

 Profile Answers by mani.sivapuram Questions by mani.sivapuram

• Feb 14th, 2011

when we want to solve a particular problem we are going to face so many problems and  at last we are going find how to tackle this type of problem in future then if many people are using that par...

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What is major difference in assigning a variable in class and assigning a variable in constructor?

Kiran Chaturvedula

 Profile Answers by Kiran Chaturvedula Questions by Kiran Chaturvedula

• Jan 20th, 2011

A Constructor Class is a class that is used to create a new class using the "new" keyword. Any variable declared under this constructor class will be a "Class Variable" meaning all...

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Public ActionForward execute(ActionMapping am,ActionForm af,Req,Res)
{
Myfornbean mf=(Myformbean)af;

//why we are typrcasting here

sivaram

• Jan 12th, 2012

We define our form bean by extending ActionForm or DynaActionForm.
In execute() method, we are getting the ActionForm object and to get the form values we need to get our form bean object. So it is must to type cast it.
Please correct if Im wrong.

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Lokesh M

 Profile Answers by Lokesh M Questions by Lokesh M

• Feb 10th, 2012

Abstract classes used to implement polymorphism. Abstract class allows additional method declaration in the class.

Please read detailed discussion here http://www.geekinterview.com/question_details/19145

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Lokesh M

 Profile Answers by Lokesh M Questions by Lokesh M

• Feb 10th, 2012

Bit Twiddling was used in earlier days for efficiency. It is a technique used for bit manipulation. Java bitwise and bit shift operators such as NOT, AND, OR, XOR, LEFT-SHIFT, RIGHT-SHIFT, UNSIGNED-RI...

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Can we use a Servlet as the shared object

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Jul 4th, 2012

We can use servlet as a shared object by using as shared object the servlet can maintain its state by using its init() and destroy() methods to load and save its state.

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Is there any way to restrict webpages loaded in iframe to redirect to other website out of iframe?

• Jan 28th, 2018

Read OWASP Security Standards.

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What is synchronization and what are tools of synchronization ?

manoj.arah

 Profile Answers by manoj.arah Questions by manoj.arah

• Apr 25th, 2013

Synchronization is the process of allowing threads to execute one after another. Synchronization control the access the multiple threads to a shared resources. Without synchronization of threads, one ...

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How to explain project architecture?

Pradeep

• Apr 8th, 2015

Project architecture is very high level design of the project describing the components of the project and their interaction.

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For parsing a big XML and modifying it (removing empty element), which parser should we use?

HimanshuMishra

 Profile Answers by HimanshuMishra Questions by HimanshuMishra

• Mar 27th, 2015

In java ...check StAX?parser.

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Provide one Programming level example of Custom Exception?
Where and Why we Use Custom exception?

binita

 Profile Answers by binita Questions by binita

• Dec 15th, 2015

WE use it to handle exception. For checked exception we write a class by extending exception. Depending on requirement we write constructor, define instance variable. All IO exception, SQL and class not found are checked exception.

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