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

Core Java Interview Questions

Questions Answers Views Company eMail

What is the is a and has a relation ship in oops concept in java?

BearingPoint, TCS,

9 40085

what is the difference between pagecontext and servletcontext?

JBA Infotech, TCS,

5 20514

EDS (Electronic Data Systems India Pvt Ltd) at Chennai on 16-12-2006.

EDS,

1 8617

Which is not Object in Java?

Honeywell,

10 13793

Iterator in the HashMap is fail-safe means what?

CTS, IBM, Subex,

9 33994

hi am an engineering student and my next plan is for ms in either in us or australia i got my passport but i dont know anything bout visa can u give brief idea 1)How to get prepared for visa and 2)How to apply for top universities and 3)How to pay the fee and so on These all are basic questions plz give me a clear idea

1458

can we write a program with out a class in core java?

Wipro,

11 14081

Why non nested classes in java are not having marked as protected access specifier

Google,

2 10179

for what purpose we use applets ?

Mindlogicx,

3 10576

What do u mean by wrapper Class? What do u mean by Jvm... How do u change JVM for other OS? Or No need to Change ...? its like tricky

Accenture, EDS,

6 16160

what is dynamic method dispatch ?

Fidelity, MUET, SDSF,

27 46177

suppose string s1="rajnish"; string s2="bhaskar"; then what will be happend ?

Fidelity,

9 10402

what is the Arraylist limit (maximum) by default ?

Fidelity, PlanetSoft, Wipro,

13 42441

can you create interface instance ?

Fidelity, TCS,

54 66190

which one the better thread emplemented thread or extended ?

Fidelity,

4 7389

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Un-Answered Questions { Core Java }

What is purpose of applet programming?

634

Explain the meaning of java applet.

600

what is server side caching?

1602

What is the private method modifier?

572

How to perform selection sort in java?

580

What is a boolean structure?

553

Explain the difference between runnable and callable interface in java?

582

What is the meaning of flag day?

537

What is a java lambda expression?

551

Where can I find jdk in my computer?

464

Does java have extension methods?

525

What is private static in java?

575

Mention some interfaces implemented by linked list in java.

534

What is meant by class loader? How many types are there? When will we use them?

501

what is the use of bean managed and container managed with example?

1493

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