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 is the difference between Error, defect,fault, failure and mistake?

HCL,

1200

What are assertions in java?

Impetus,

1 2150

How are java objects passed to a method and what are native methods?

Genpact,

1073

What is scope & storage allocation of global and extern variables? Explain with an example

IBS,

1036

Explain with example the concept of constant variable in java.

HCL,

1171

what is the purpose of "virtual"?

EDS,

1079

What is the reason behind using constructors and destructors?

HCL,

1055

Detail discussions on JVM, memory management and garbage collector.

Expedia,

983

How can we make a class virtual?

Fidelity,

1110

What are the basic concepts of OOPS in java?

Axtria, ITC Indian Tobacco Company,

1032

What is garbage collection? Can it be forced to run?

Global Logic,

1007

Give differences between Quicksort & Mergesort. When should these sorts be used and what is their running time?

Genpact,

1062

Write a function for palindrome and factorial and explain?

Honeywell, Huawei, Zomato,

1075

What is the use of a conditional inclusion statement in Java ?

Global Logic,

1090

Why main function is static?

MCN Solutions,

1225

Un-Answered Questions { Java J2EE }

What is the standard way to create threads, do initialization, etc. Within the application server? : BEA Weblogic

1016

What is remote method invocation (rmi)?

1058

Whether thread can be used in servlets?

1204

What is the difference between object oriented programming language and object based programming language?

1012

Describe aop.

537

When super keyword is used?

1009

What is the function of internal frame in swing?

1061

What are the methods of bean life cycle?

522

What is component contract?

933

What is the JDBC syntax for using a literal or variable in a standard Statement?

991

What are the modules in spring?

478

How can an exception be thrown manually by a programmer?

995

tell me the permenent memory issues?

2713

What is jlabel java swing?

991

What is spring framework?

376

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