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 42889

what is the difference between pagecontext and servletcontext?

JBA Infotech, TCS,

5 22423

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

EDS,

1 9210

Which is not Object in Java?

Honeywell,

10 16757

Iterator in the HashMap is fail-safe means what?

CTS, IBM, Subex,

9 37198

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

1926

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

Wipro,

11 17194

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

Google,

2 11238

for what purpose we use applets ?

Mindlogicx,

3 11737

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 18300

what is dynamic method dispatch ?

Fidelity, MUET, SDSF,

27 53461

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

Fidelity,

9 12720

what is the Arraylist limit (maximum) by default ?

Fidelity, PlanetSoft, Wipro,

13 47399

can you create interface instance ?

Fidelity, TCS,

54 78757

which one the better thread emplemented thread or extended ?

Fidelity,

4 8822

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Un-Answered Questions { Core Java }

What is thread life cycle in java?

1069

What is use of arraylist in java?

1181

How to find the largest value from the given array.

1012

What is a condition in programming?

1013

What do you mean by static variable?

1065

What is matcher in java?

1005

Is ruby built on java?

958

How many bits is a double?

1019

Can we have try without catch block?

1082

How long will it take to learn java?

993

What is java used for on a computer?

1000

How do you use compareto?

948

What is gui programming?

1039

What are the drawbacks of singleton class?

1010

What is unmodifiable list in java?

964

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