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 43227

what is the difference between pagecontext and servletcontext?

JBA Infotech, TCS,

5 22669

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

EDS,

2 9300

Which is not Object in Java?

Honeywell,

10 17113

Iterator in the HashMap is fail-safe means what?

CTS, IBM, Subex,

9 37496

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

1 1981

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

Wipro,

11 17626

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

Google,

2 11369

for what purpose we use applets ?

Mindlogicx,

3 11881

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 18568

what is dynamic method dispatch ?

Fidelity, MUET, SDSF,

27 54323

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

Fidelity,

9 13104

what is the Arraylist limit (maximum) by default ?

Fidelity, PlanetSoft, Wipro,

13 47955

can you create interface instance ?

Fidelity, TCS,

54 80460

which one the better thread emplemented thread or extended ?

Fidelity,

4 9032

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Un-Answered Questions { Core Java }

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

1085

What is a classloader in java?

1072

What is the difference between break and continue statements?

1107

What is the difference between equals() and == in java?

1023

What is an object in java and how is it created?

1110

Is minecraft 1.15 out?

1024

Write a program to print count of empty strings in java 8?

1071

What is a constructor overloading in java?

1115

How to create a base64 decoder in java8?

1119

Explain public static void main(string args[]) in java.

1053

How to sort array in descending order in java?

976

Realized?

2239

What are the differences between heap and stack memory in java?

1114

Differentiate between static and non-static methods in java.

1106

What is java string pool?

1068

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