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

suppose we have an interface & that interface contains five methods. if a class implements that interface then we have to bound that to give tha definition of all five methods in that class. If we declare that class as abstract then can we call only two methods to give the deinition of that method & i don't want to give the definition of all the methods? can it possible

HP, Wipro,

6 10209

What is connection pooling? What Method and class used for Connection pooling in Java?

2 7698

what is a Daemon Thread?

2 5255

What is the performance issue in weblogic and how can you resolve ,explain in brief

HCL, IBM, TCS,

4 18880

How to synchronize jsp page?

Infotech, TCS,

1 7374

what are design patterns in java?give with example?

HCL, iGate,

2 7033

Why java is not a pure object oriented language?

IBM,

5 8822

how to run servlet program between two computer through internet ?

TATA,

2948

why java is platform independent?

IBM, SparkTG,

5 8125

Why JDBC has introduced

4 8559

how to run servlet program between two computer through the internet ?

Kiran Prakashan, TCS,

2 6910

can you use the two main method in same class?how?

DELL, Geosoft, SparkTG,

4 10910

which is the better collection class if the requirement is only displaying the data

1 4009

java program that takes a 3 digit number n and finds out whether the number 2^n + 1 is prime, or if it is not prime find out its factors.

HCL, Wipro,

7 10225

When we give defination of interface method in the class why method must be public???

2 4702

Un-Answered Questions { Java J2EE }

how to protect servlets in java ee applications?

922

Differentiate between beanfactory and applicationcontext.

596

What do you mean by database connection pooling?

954

What is the use of jcomponent class in swing?

1055

What is use of inner class in java?

1154

How the jms is different from rpc?

927

Differentiate between postfix and prefix operators in java.

1128

What is <> used for in java?

1119

What is @restcontroller?

443

How to change button color in java swing?

968

What is singleton class in ruby?

1019

What is the use of @bean annotation in spring?

399

What one should take care of, while serializing the object?

905

What is the point of the factory pattern?

431

What are the different modules of wlst?

1024

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