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Java J2EE Interview Questions
Questions Answers Views Company eMail

what is the difference between Tomcat 4 & Tomcat 5?

IBM, TCS,

6 11532

what is difference between colection and collections?

Amdocs, IBM, Infosys, Ipog Software, Polaris, Tech Mahindra,

25 65321

what is Directory Structure of webapplication?

CTS, Virtusa,

8 18533

Why we can not force Garbage Collection?

 7 13113

I have a class which is abstract which contains only the abstract methods. This is similar to an interface. Then, if i have given a choice to choose one of them. Which one i have to choose and why?

 4 5902

In connection pool,when 100 clients are requesting, in pool 100 objects is there, when another client is making request how it will work

 3 5789

How multipleInheritance is possible in java?

Satyam,

18 18421

Even though Servlets and JSP are web based concepts .wht is the use of using Struts using then

TCS,

8 11414

How to add ms-word file in struts at the same time how to add images

 1 5120

how to write my own Action servlet by extending pre-defined Action servlet in struts config.

Sony,

2 10562

explain me with a code snippet about the generation and handling of null point exceptions.

 1 3709

if u havea .class file ,how can u say whether it is servlet or not ,dont use java decompliler

Polaris,

4 6721

We have two methods to create methods the threads. 1. Implementing runnable interface 2. Extending to thread class and overriding run method. Among these two which one is better and why? Please explain me in detail.

 2 5389

what is the use of cvs in struts?

2 6710

we have 7 jsp pages .At last page we have a submit button when we click it it will store all jsps data which we provide will store into database. when we starting providing data in jsp pages when we are at 3rd jsp at that time sessions timeout where the data will be store which we r provide in last two jsps?

 2 5820

Un-Answered Questions { Java J2EE }

What is bea weblogic? : BEA Weblogic

515

what is difference between dead letter queue and backout queue in websphere mq?

475

What is the difference between the paint() and repaint() methods?

580

How java can be connected to a database?

564

How do you design microservices?

619




How do you identify if jvm is 32-bit or 64-bit from java program?

531

Differentiate between stringbuffer and string?

587

What is main difference between spring and spring boot? : Spring Boot

171

What is the use of the statement in jdbc?

487

What is thread stack size? What is the default thread stack size in windows?

549

What is jdbc driver for sql server?

530

How to debug my ant script?

532

What do you mean by exception handling in Java?

653

What is the independent variable in an experiment?

543

Why string is not a wrapper class?

636

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