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

State differences between C and Java?

Deloitte, JPMorgan Chase,

1215

Differentiate storage classes on the basis of their scope?

Fidelity,

1171

What are "class access modifiers" in Java?

Genpact,

1134

How are multiple inheritances done in Java?

Atos Origin,

1144

Can we force garbage collector to run ?

B-Ways TecnoSoft,

1055

What is the difference between overriding and overloading in OOPS.

Axtria, ITC Indian Tobacco Company,

1165

What do you mean Abstraction in java?

Aspire, Infogain,

1088

What is meant by 'Class access modifiers'?

HCL,

1047

Compare Mutex and Semaphore in java.

Ciena,

1005

Describe the Big-O Notation.

Global Logic,

1048

What is the use of StringTokenizer class?

Hexaware, Virtusa,

1070

Difference between stack and queue?

Flextronics,

1080

Describe the syntax of multiple inheritance? When do we use such an inheritance?

Fidelity,

1094

What is the concatenation operator in java?

Aspire, Infogain,

1159

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

Global Logic,

1142

Un-Answered Questions { Java J2EE }

What is the purpose of ejb in java?

1071

What is abstract class constructor called?

1004

Is 0 a prime number?

992

What is odbc jdbc?

1006

Explain their methods? Tell me their parameter names also have you used threads in servlet?

1043

What are the features of message broker?

1009

Does JDBC support stored procedures?

1001

Give me an example of array and linked list? Where they can be used?

1010

What is @manytoone?

389

What is the difference between && and & in java?

1083

What are autoboxing and unboxing? When does it occur?

959

What are unchecked exceptions in java?

1039

What is the difference between concern and cross cutting concern in spring aop?

388

What is the name of the java compiler?

1055

What are the differences between Struts1 and Struts2 or how Struts2 is better than Struts1?

1014

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