Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

what happen if we set JDBC string to NULL?

Sapient,

3390

why java uses class level type casting ?

2657

how a programmer confirms that the data submitted has been succesfully inserted into the database(either oracle or my sql).. How a programmer confirm if there is any problem with the program he wrote for insertion... ANS:--- >executeupdate method is having boolean return type, if anything goes wrong in data insertion or data updation, it would return false. otherwise, if it successfully inserts data into the database, it would return true NOW HOW TO I CHECK IN MY DURING EXECUTION WHETHER IT RETURNS TRUE OR FALSE... WELL IT WILL DISPLAY ANY MESSAGE OR NOT

Google,

2420

where can we get jAVA project orientation traing in HYDERABD

1996

java program with complete 4 oops concepts implemented example

Infosys, NIIT,

3154

servlet life cycle?

eMids, Wipro,

4 8052

any one can explain about policy file rule? when i connect database with applet then ther is no compile time error but the run time error is occureed.i.e access is denied.policy file rule is related to this problem.

2303

what is platform independence in java?

CSC, HSBC,

5 8678

if num=687; U have to get num=6+8+7;

CMC,

4 6195

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?

CMC,

4 9298

in a console we r giving java if r pressing enter where it'll goes

CSC,

2 4935

Can we extend the String class?

Truworth,

3 25408

we r taking 0 1 in deployment descripter for loading servlets like serv1 N serv2? so 'll it take serv1 or serv2

CSC,

2 7500

what are the different non-access specifiers in java?

5 12079

why we don't use the type 2 driver for connect to the database in jdbc?

TCS,

1 5060

Un-Answered Questions { Java J2EE }

What is the use of liferay portal?

465

What is mdb in ejb?

958

What is the usage of Hibernate QBC API?

496

Explain how to force the garbage collection in java.

963

What is the difference between access specifiers and access modifiers in java?

1166

Explain about hibernate proxy and how it helps in lazy loading?

372

What is dto model?

482

Explain the access modifiers for a class, method and variables?

1141

What are the considerations to be made in case of loops in java ?

1028

how to use debug in my elipse to solve problems that exist in my project

2280

How to connect html page to database using jdbc?

894

what is enumset?

1113

Can I learn spring boot without spring? : Spring Boot

439

What is the difference between Grid and Gridbaglayout?

1238

Why is model-view-controller architecture used in swing?

976

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