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 get and load method?

468

What is lazy loading in hibernate?

441

What is n+1 select problem in hibernate?

432

What is sessionfactory?

351

What is the difference between first level cache and second level cache?

449

What is different between session and sessionfactory in hibernate? (Detailed answer)

346

What is the difference between session.save() and session.persist() method?

454

What is the function performed by code generator in hibernate?

443

What is criteria in hibernate?

476

What are the states of object in hibernate?

1 723

What are the best practices that hibernate recommends for persistent classes.

367

How to make a immutable class in hibernate?

448

Why hibernate is preferred over jdbc?

477

Which method is used to remove a persistent instance from the datastore?

422

What is the difference between save() and persist() methods of session object?

463

Un-Answered Questions { Java J2EE }

What are the classes used in struts?

1090

What is the use of parse function in java?

981

What are the steps required to setup the oracle instance for os authentication?

1086

What do you mean by annotation-based container configuration?

420

Is kafka a jms?

828

What are the tables used for catalog management?

902

Is it possible to cast an int value into a byte variable? What would happen if the value of int is larger than byte?

952

What are the steps involved in configuring the jms?

943

How does hibernate lazy loading work?

395

What is os tuning?

1018

Write a simple servlet program to print the contents of html.

1048

What is functional interface in java?

1045

What does crud stand for?

408

What is meant by a servlet?

1103

Difference between load and get method?

968

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