Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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.

1 2310

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

iFlex, TCS,

18 56761

How to set Connection Pool size in Weblogic Server ?

Infosys,

11 39681

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

Mind Tree,

5 14715

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

Microsoft, Mind Tree, Tech Mahindra,

2 25520

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 12349

how can i connect to database in a applet ?

1 5075

when to use abstract class and when to use interface?

Exterro, iGate, IonIdea,

16 59457

what is difference between class and object?

College School Exams Tests, HCL,

43 93762

Un-Answered Questions { Java J2EE }

How can you inject java collection in spring?

501

How is declarative handling of exceptions done in struts ?

999

explain different ways of using thread? : Java thread

1077

What is latest hibernate version?

484

How to create a base64 decoder in java8?

1129

What is an object in java and how is it created?

1123

What is the difference between filters and interceptors ?

1293

Find Best Job Vacancies across the world on Jooble!

126

Write a program to find the whether a number is an Armstrong number or not?

1095

What is the difference between equals() and == in java?

1032

What is a classloader in java?

1080

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2415

Hi frnd can i any one kindly can post for me portlet,hibernate and spring example application and with flow explantion configuration using Jdeveloper.and related links ar tutorials kindly please send me .its urgent for me .thanks in advance...........else can any one send to kondaiah.goddeti@gmail.com

2257

What is the difference between break and continue statements?

1117

hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code

2859

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