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

how can we sync the nodes with administration server in weblogic.

3633

By default thread dump goes to System.out log.How can we send it to a particular file so that when we take the thread dump, instead of searching in System.out we can analyse a particular file

2 7353

If your client asks toupgrade the jdk version. How can you do this and after then what are the post changes needed

1 4638

what are the pre requisite to installing weblogic server 10

3 7316

If you get Null point exception at the time of ear deployment from console what will be you next steps to resolve the problem.

1 3553

how can you change the jvm arguments in weblogic server

2 13576

suppose you deployed a new application and the application is not reflecting to clent. what will be your steps of action

1 5621

how can you increase heap size from command line

IBM, TCS, Wells Fargo, Wipro,

2 12911

suppose you changed a admin password.in which other file you have to update after this

2 5691

suppose we have the thread dump for particular weblogic server.ho can you analyse it manually without using any tool

3 9172

what is directory structure of any ear/war file in weblogic

Wipro,

1 12950

difference between apllet and interface class

Infotech,

1 3674

what is difference betwenn Access Specifier and Access Modifier ????

2 4975

Explain your academic project?

Accenture, Levonsys, SDF, TCS, Tech Mahindra,

2 10836

What is JVM ? use of JVM?

BVC, Tech Mahindra,

6 14535

Un-Answered Questions { Java J2EE }

What is the purpose of assert keyword used in jdk1.4.x?

1062

What is the static import?

1102

What is front controller in spring mvc?

418

What methods are used in Servlet?Applet communication?

2238

Say you want to store the information about a number of pets in an array. Typical information that you could store for each pet (where relevant) would be • Breed of animal • Animal's name • Its birth date • Its sex • Whether it has been sterilised or not • When it is due for its next inoculation • When it last had its wings clipped For each type of pet (eg. dog, cat or bird) you would typically define a class to hold the relevant data. Note: You do not need to implement these classes. Just answer the following questions. 3.1.1 What would be the advantage of creating a superclass (eg. Pet) and declaring an array of Pet objects over simply using an array of Objects, storing each of the instances of the different pet classes (eg. Dog, Cat or Bird) in it? 3.1.2 Would you define Pet as a class or as an interface? Why? (2) (2)

1817

What is a class object?

965

What is data and its types?

996

Is jdk an api?

415

What is the difference between flush and commit in hibernate?

419

Is linked list a linear or non-linear data structure?

967

How to create an ejb session in order to start a jms connection?

838

What are the 4 types of jdbc drivers?

1009

What is the use of @bean in spring boot? : Spring Boot

440

When should be opt for struts framework?

1046

Define servlet mapping?

1163

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