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 10203

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

2 7696

what is a Daemon Thread?

2 5252

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

HCL, IBM, TCS,

4 18877

How to synchronize jsp page?

Infotech, TCS,

1 7372

what are design patterns in java?give with example?

HCL, iGate,

2 7025

Why java is not a pure object oriented language?

IBM,

5 8813

how to run servlet program between two computer through internet ?

TATA,

2946

why java is platform independent?

IBM, SparkTG,

5 8116

Why JDBC has introduced

4 8554

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

Kiran Prakashan, TCS,

2 6907

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

DELL, Geosoft, SparkTG,

4 10909

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

1 4006

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 10222

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

2 4699

Un-Answered Questions { Java J2EE }

How to use JDBC API to call Stored Procedures?

1020

What are the data types supported by java? What is autoboxing and unboxing?

1024

What is a Null object?

1639

What are the components of session beam?

1076

What is the formula to calculate percentage?

1018

What is scope of a variable?

1099

Why is jdbc needed?

911

How will you invoke any external process in java?

1116

What is stateless ejb?

950

What is struts?

984

Explain constructors and types of constructors in java.

1113

can you federate a node on system I box into dmgr over windows/linux platform?

910

List different types of user registry supported by websphere portal ?

852

What about features of local inner class?

1069

What is indexof in java?

1007

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