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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

Describe the Big-O Notation.

Global Logic,

1040

What is the use of StringTokenizer class?

Hexaware, Virtusa,

1061

Difference between stack and queue?

Flextronics,

1073

Describe the syntax of multiple inheritance? When do we use such an inheritance?

Fidelity,

1088

What is the concatenation operator in java?

Aspire, Infogain,

1150

Explain the access modifiers for a class, method and variables?

Global Logic,

1137

What is OOP's Terms with explanation?

1184

What is better - 'bit-shift a value' or 'multiply by 2'?

DELL,

1184

How would you use Bubble Sort to sort the number of elements?

Genpact,

996

What is close method? How it's different from Finalize & Dispose?

InfoAxon Technologies,

1060

Can a private method be declared as static?

Global Logic,

1018

What do you understand by access specifiers in Java?

Genpact,

1008

Implement two stacks using a single array.

Global Logic,

1057

What is the use of 'super' keyword inside a constructor?

Flextronics, Thomson Reuters, Virtusa,

962

What is the method to declare member of a class static?

HCL,

1006

Un-Answered Questions { Java Related }

What is a variable declaration?

974

What is the use of persistent store in weblogic?

945

What is entitymanager in spring?

409

Which is better stringbuilder or stringbuffer?

928

Explain heap sort?

1103

How do you make a class immutable in java?

846

Can a class have multiple superclasses?

1154

What is singleton pattern?

1098

What is classname class in java?

1056

Must my bean-managed persistence mechanism use the weblogic jts driver? : BEA Weblogic

938

Do extraneous variables affect validity?

909

Why you should not use singleton?

964

While packaging the web application defaultwebapp for deployment into the weblogic server, the home and remote interfaces of the enterprise beans used by the servlets should reside in which directory? : BEA Weblogic

1033

What is publish/subscribe messaging?

882

Why would you use an orm?

324

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