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

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Java Related Interview Questions

Questions Answers Views Company eMail

Hi Friends, can u give me Real Time example for interface and abstract class.(With Banking Example)

4 15054

In DAO we are writting sql queries , how it is possible with creating and closing database connections.

1 2005

when to use ArrayList and when to use HashMap in webApplication.

2 4850

what is the diffrence between weblogic server 8.x/9.x/10.x?

HCL, TCS,

7 37575

Difference between Weblogic server and websphere server?

IBM,

1 9544

what is main difference between architecture,framework and design pattren

3 16082

Hi Friends, can you explain instance in java. In general instance means "occurence of something" . In java what is instance.

4 6306

Hi Friends, I am beginner in java. what i know about synchonized keyword is,If more that one 1 thread tries to access a particular resource we can lock the method using synchronized keyword. Then after that how the lock is released and how next thread access that.Please explain with example.

5 6589

Hi Friends, can you give difference between extending thread class and implementing runnable interface.

4 6818

what is an object class?Explain its methods?

6 12187

Hi Friends, I am new to java. Can u explain about thread concept.How i know one thread is locked, and how can i force or acquire another thread for lock . Finally how to know thread is released from lock. Explain types of lock(like method level and block level) in thread.

1 3795

I have a sorting issue with a Hashmap. My constraint is that I MUST use the Hashmap and work with existing code. I do a database query and place the results in a Hashmap. When I iterate thru the Hashmap, it loses the original alphabetical sorting done by the database. So, my problem is that I must sort the results coming out of the Hashmap which is then placed into another class.

1 4691

What is Session and cookies?Explain in detail with an example?

Accenture, CTS,

4 19447

I need to know about complete topic in java's collections i with an examples

TCS,

1 5216

Real Time sample code for Encapsulation and Abstraction. where to use abstract and where to use specifies like public private.

2 9592

Un-Answered Questions { Java Related }

What is java string pool?

1076

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

2258

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

1095

How can you inject java collection in spring?

503

What is a constructor overloading in java?

1121

What is lazy class?

480

Is minecraft 1.15 out?

1038

What are the contents on web.xml in struts application ?

1058

Can we extract main method from another class?

1026

Can we return resultset in java?

986

What is the first argument of the string array in main method?

1025

what are the different modes of archival? Explain each mode in two lines each?

994

Differentiate between static and non-static methods in java.

1116

How to sort array in descending order in java?

986

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

2862

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