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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 13964

what is difference between colection and collections?

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

25 71822

what is Directory Structure of webapplication?

CTS, Virtusa,

8 21344

Why we can not force Garbage Collection?

 7 14957

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 7397

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 6967

How multipleInheritance is possible in java?

Satyam,

18 23113

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

TCS,

8 14078

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

 1 5867

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

Sony,

2 11516

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

 1 4513

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

Polaris,

4 8313

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 6268

what is the use of cvs in struts?

2 7749

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 6601

Un-Answered Questions { Java J2EE }

Which collection is thread safe in java?

987

What version of websphere software is required to install websphere clustering?

901

What is difference between printf and scanf?

1151

What is java swing used for?

1004

What is oauth token?

440

What is meant by j2ee?

927

What is j2ee architecture?

886

What is the default transaction attribute for an ejb?

971

What is a variable analysis?

1088

Does apache tomcat use struts?

916

What are the types of ioc container in spring?

434

How do you sort words in java?

924

What is a stateless session?

1009

What do you mean by stream pipelining in java 8?

1225

What are the different types of injection in spring?

460

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