Java Related Interview Questions
Questions Answers Views Company eMail

What are the basic concepts of OOPS in java?

Axtria, ITC Indian Tobacco Company,

549

What is garbage collection? Can it be forced to run?

Global Logic,

517

Give differences between Quicksort & Mergesort. When should these sorts be used and what is their running time?

Genpact,

552

Write a function for palindrome and factorial and explain?

Honeywell, Huawei, Zomato,

630

What is the use of a conditional inclusion statement in Java ?

Global Logic,

565

Why main function is static?

MCN Solutions,

642

What are the characteristics of Final,Finally and Finalize keywords.

Flextronics,

675

How will you print number in reverse (descending) order in BST.

GrapeCity,

555

What is meant by data hiding in java?

Aspire, Infogain,

618

What is OOP Language?

Atos Origin,

605

Differentiate between postfix and prefix operators in java.

HCL,

615

Can we have more than one MDQ in one map?

IBM,

461

How many times the Functional map will execute, if the attributes are 2 independent groups, one occurs 3 times and occurs 2 times? What if the 2 groups 2 dependent?

IBM,

455

What is EDI? Why is it used?

IBM,

468

Difference between RUN command and Functional maps?

IBM,

466


Un-Answered Questions { Java Related }

What are four types of JDBC driver?

554


What do you mean by collectors in java 8?

514


How do I set up my classpath? : BEA Weblogic

513


What is a class in java?

560


I don't have websphere installed on my web server how do I add to the websphere administration console ?

416






Can an interface be defined inside a class?

495


When you should not use dependency injection?

127


Can we increase array size dynamically in java?

484


What is servlet collaboration?

639


How can we get Servlet API Request, Response, HttpSession etc Objects in action classes?

602


What is the history of java?

517


What is the argument type of a programs main() method?

541


What is sync in websphere application server?

450


What are the types of the transaction management that is supported by spring?

133


What does system.gc() and runtime.gc() methods do?

579