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Java J2EE Interview Questions
Questions Answers Views Company eMail

what is the diff's between swing and applet?

Invictus, Patni,

17 50261

what is the difference between equals method and ==

IBM, Professional Access, TCS,

17 27849

what is connection pooling?

Wipro,

6 18472

Is form beans are serializable or not?

College School Exams Tests, Magna Infotech,

11 25035

how many design pattern r there? and wht design pattern u use and why ?

HP,

5 11164

what is the disadvantages of using DynaActionForm in struts framework?

HCL,

5 19140

how to make a index.jsp for running the site in internet and find an error for connection with weblogic server and java that give an error invalid object name.and how to maintain session.

 2244

What is Virtual Host in Weblogic , how to create it & what is the advantage ?

iFlex, TCS,

18 55896

How to set Connection Pool size in Weblogic Server ?

Infosys,

11 39166

what is the difference b/w PUT and POST method to send data to the server

Mind Tree,

5 14360

what s the difference b/w EJB 2.0 and EJB 3.0 technically

Microsoft, Mind Tree, Tech Mahindra,

2 25368

In the first round, there are 30 aptitude and 30 java questions. We are suppose to finish both the papers within 60 minutes. I cleared this round. Next was test for programming skills. In this section, Some 7 n's were asked. 1. What is the difference b/w sleep(1000) and wait(1000) 2. what is the diff b/w static block and static function? 3. Write a program to validate IP address using string tokenizer. 4. Write a program to create singleton class 5. write a function to reverse the string 6. Write a prog to print prime nos upto n. EX: If n=9, It shld print 1,2,3,5,7 7. One program on collections- Write a program to print no. of times a number is repeating in an array. EX- {1,3,1,2,5,7,3,7,34,3,8,3} It should print: 1- 2 times 3- 4 times and so on 7. Write a func to print fibonocci series After this I had technical interview, which went on for. 60 mins or so. There were qn's about multi threading, Exception handling and collection classes. Knowledge about collections was very important for the post I was interviewed for.

Huawei,

1 12230

how can i connect to database in a applet ?

 1 4939

when to use abstract class and when to use interface?

Exterro, iGate, IonIdea,

16 58735

what is difference between class and object?

College School Exams Tests, HCL,

43 91966

Un-Answered Questions { Java J2EE }

What is the use of EventMessage.java?

1496

How can we configure http tunneling on weblogic?

1076

Are foreign destinations handled within foreign jms messages? : BEA Weblogic

977

Explain the private protected method modifier?

991

What are log filters and what are their purpose?

961

What is the function of character?

1053

How many types of assembly languages are there?

973

What is spring boot and spring mvc? : Spring Boot

399

What is the capacity the doget can send to the server?

1082

Why resultset is used in java?

939

What are the two environment variables that must be set in order to run any java programs?

967

What are the differences between this and super keyword?

948

how to call the method or function in the coding?

889

Explain the Command line utilities in wls?

1016

Can string be considered as a keyword?

1038

For More Un-Answered { Java J2EE } Questions Click Here