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

Core Java Interview Questions

Questions Answers Views Company eMail

whays is mean by inner class?

HCL, IBM, TCS,

4 8431

class A{ class B{ } } in which name u save the file,its the program compile?

HCL,

6 9483

class A { class B { psvm(String args[]) { } } } if the prg saved in A.java whats the o/p?

HCL, TCS,

7 13442

wahts is mean by thread?

HCL, TCS,

22 29957

whats the diff between jsp and servlets?

HCL, TCS,

9 13695

Hi Friends.. can any one provide the real time example for methodoverloading and methodoverriding .........

Honeywell,

2 7801

os is developed in c no java is more secured then c na why dont the os developed is developed using java

1 4240

why java does not support mulitple inheritance directly?

TCS,

3 6445

what is the replacement for GOTO in java?

CTS,

2 12893

how can we synchronize Hash map?

CTS,

3 12033

Can you explain the difference b/n abtract and interface with a good example,?In what cases we have use abtract and what case interface?

Satyam,

4 8451

How to deprecate a method? Show it with proper example. Plz give the answer of this.Thanx in advance. mail me: tanzeem.akhtar@gmail.com

2 4611

What is compile time polymorphism?

CTS, Elementus Technologies, Oracle,

20 39089

What is run time polymorphism?

eClerx, Elementus Technologies,

6 18820

why is multiple inheritance not allowed in java?

Elementus Technologies, Huawei, Infosys,

7 16010

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Un-Answered Questions { Core Java }

What is the functionability stubs and skeletons?

1160

java Technical questions asked by JPMC

5094

What is the difference between jvm and jre? What is an interface?

1101

Can you make a constructor final in Java?

1144

What is meant by distributed application? Why are we using that in our application?

950

Can inner class have constructor?

1048

Is integer a class?

1093

Explain importance of inheritance in java?

1036

What is the purpose of the system class in java programming?

1114

Write a method that will remove given character from the string?

1040

What is scanner in java?

957

Tell us something about different types of casting?

950

Explain java coding standards for classes or java coding conventions for classes?

1137

What do you mean by buffering?

1051

What is the private method modifier?

1096

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