J2EE Interview Questions
Questions Answers Views Company eMail

Explain about J2EE Application Architecture

1 7493

Name the Implicit variable which is used to access other implicit objectes present in JSP.

AZTEC,

7 10704

Hello frds .recently I've got a call for the test in infosys .iam having 1.5 yr exp in java pltfrm.plz can anyone tell the main process( in detail) for infosys experienced professionals

1 1413

What is the difference between sendRedirect() and forward()? in what situations do we have to use send redirect() instead of forward().

Honeywell, Wipro, Samsung, Mind Tree,

13 30040

How can we serialize a jsp page.

HCL, Oracle, CSC,

3 13851

to update a batch in a table in jdbc which method of statement object is used

1 1936

to update a batch in a table in jdbc which method of statement object is used

631

to update a batch in a table in jdbc which method of statement object is used.

TCS, Polaris,

6 6928

i have to create an application with session.during that session a timer will be started & show the time in second upto the session expired.So that i can know how many time i in that session. Hint:-i m hinted that it will coded with javascript

L&T, Wipro,

4 3987

what is the difference between Tomcat 4 & Tomcat 5?

IBM, TCS,

6 7268

what is Directory Structure of webapplication?

Virtusa, CTS,

8 13453

CANDOR Services, a leading provider of next-generation staffing services, draws from unparalleled resources and expertise to offer you innovative, quality workforce solutions. We have openings for "J2EE ARCHITECT" with one of our clients. Client is CMM Level 5 company. Location : Hyderabad Roles A J2EE Architect with expertise in Web Architecture (covering Spring MVC, AOP, Webflow, Struts, Tiles, Hibernate, JAAS, Web Application Performance Turning & Measurement) as part of Solutions Architecture Group: Position involves in providing architectural vision, conceptualize and provide architectural approaches, create models and specifications, and validating the architecture against requirements and assumptions. Also involves in providing oversight over ongoing projects as a reviewer and auditor Educational Requirements A minimum of BS or MS (MS preferred) in Computer Science or Engineering or equivalent experience in the IT industry. Skill Sets Overall 8-10 Years of experience in IT industry with 3-4 Years of experience in Service industry Technology Skills Java, J2EE, MVC Frameworks (Struts/WebWork/JSF/Spring), Spring, AOP, WebFlow, ORM Tools (Hibernate/Ibatis/JDO/Tapestry), App servers, Databases, JAAS Web Application Performance Tuning & Measurement 6+ years Java software development experience. 4+ years of enterprise Java development, with emphasis on web-based applications. Strong relational database and SQL skills (5+ years). Mail to : anuradha.k@candorservices.co.in

TCS,

2033

i developed a Stateless Session bean program.And created a client by a common java class as class m {p s v m(String s[]){....}} And i called the bean deployed in weblogic.from cmd prompt And that run. mind it i have to set setenv,seting classpath for that bean jar file before compile and run it. ok when i do a servlet programme deployed in tomcat and call that bean then it give classdefnotfoundException and NoInitialContext like this.So how i sucessfully do this? Ok when i call that bean from java class from the console like i previously told, if i don't set setenv i found the same error on the cmd prompt. pls help to get out of it

2 2746

what is the main use of the RequestDispatch object, how we this in realtime project

3 4000

why we are using XML?

TCS,

14 14611


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Un-Answered Questions { J2EE }

public class ActionDTO extends GenericDTO implements Serializable,Auditable { // default serial version id, required for serializable classes. public static final String ACTION_SUSPEND = "SPN"; public static final String ACTION_DEREGISTER = "DRR"; public static final String ACTION_REINSTATE = "REI"; private static final long serialVersionUID = 1L; private Long actionId; private long accountId; private Date actionDate; private String actionType; private String remarks; private AccountDTO account; public ActionDTO() { } public ActionDTO(Long accountId, String action, String remarks, String updatedBy) { setAccountId(accountId); setActionType(action); setActionDate(new Date()); setRemarks(remarks); setUpdatedBy(updatedBy); } public Long getActionId() { return this.actionId; } public void setActionId(Long actionId) { this.actionId = actionId; } public long getAccountId() { return this.accountId; } public void setAccountId(long accountId) { this.accountId = accountId; } public Date getActionDate() { return this.actionDate; } public void setActionDate(Date actionDate) { this.actionDate = actionDate; } public String getActionType() { return this.actionType; } public void setActionType(String actionType) { this.actionType = actionType; } public String getRemarks() { return this.remarks; } public void setRemarks(String remarks) { this.remarks = remarks; } // bi-directional many-to-one association to AccountDTO public AccountDTO getAccount() { return this.account; } public void setAccount(AccountDTO account) { this.account = account; } @Override public String toString() { // TODO Auto-generated method stub return null; } } what is the purpose of @Override public String toString()...and what will do here ?

1207


I Want build and release interview questions

2076


Since we can create managed bean by two ways as, we can define the bean name in faces-config.xml file so that page can use that OR we can write annotation on bean class so that it is automatically assign to page but I want to know which one is good programming practice ? And also mention disadvantage of other which should not prefer ... Thanking you...

927


to update a batch in a table in jdbc which method of statement object is used

631


In DAO we are writting sql queries , how it is possible with creating and closing database connections.

629


for example we are login into the irctc server from there it will go to the selected bank and deduct amount and come back to the irctc. so if we are developing this in java means will it be run on the same session. but as per my knowledge bank is separate and irctc is separate URL's so it will use two different sessions then how it is maintaining same session through out application and even it uses the payment gateway? how it is working can any one help me on that??

2387


Hi Friends. I want complete technical flow of j2ee project with following technologies. jsp , servlet , Struts , Hibernate , (should follow mvc-2 design pattern) . with DAO ,DTO SERVICE layers .

3063


you are to choose between two procedures,both of which copute the minimum value in an array of integers.one procedure returns the smallest integer if its array argument is empty. the other requires a nonempty array.which procedure should you choose and why?

1237


i want test pattern of zylog company and some examples also

1237


what is interface in java ?can you explain with simple example?and what is the difference between abstract and interface?

1067


when i m calling java for web browser . so browser it's not support. show error in browser: internal error occur. java.lang.NoClassDefFoundError. will you give me solution why it's not starting browser.? is there any consult with .net framework2.0?

694


I am newbie in J2EE & looking for strong basic behind each concept as, Why do we use private access specifier before each variable of type property bcoz ultimately to access it outside the class we use public method as getter & setter ? If we use getter & setter to access it outside the class so better we make variable as public so that it is easily available outside of the class... Please guide me why do we use as private ????

2556


I’m new to WebLogic Does anyone knows how to Deploy Application using

795


whay java does not support bass by reference

1267


public class ActionSearchBean extends GenericSearchBean { @Override public String search() { data.setRowCount(null); if(data.getRowCount()==0){ data.getNoRecordFound().setRendered(true); data.getDataScroller().setRendered(false); } return "searchAction"; } @Override public String clear() { data.setRowCount(null); if (data.getRowCount() > 0){ data.getNoRecordFound().setRendered(false); data.getDataScroller().setRendered(true); }else{ data.getNoRecordFound().setRendered(true); data.getDataScroller().setRendered(false); } data.setModel(new ActionDTO()); data.setRowCount(null); return "searchAction"; } } what is the purpose of @Override ...what will do @Override here ?

933