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Core Java Interview Questions
Questions Answers Views Company eMail

whays is mean by inner class?

HCL, IBM, TCS,

4 6881

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

HCL,

6 7198

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

HCL, TCS,

7 11019

wahts is mean by thread?

HCL, TCS,

22 24694

whats the diff between jsp and servlets?

HCL, TCS,

9 11176

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

Honeywell,

2 6635

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

 1 3507

why java does not support mulitple inheritance directly?

TCS,

3 5168

what is the replacement for GOTO in java?

CTS,

2 11939

how can we synchronize Hash map?

CTS,

3 10543

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 7003

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 3517

What is compile time polymorphism?

CTS, Elementus Technologies, Oracle,

20 33310

What is run time polymorphism?

eClerx, Elementus Technologies,

6 16695

why is multiple inheritance not allowed in java?

Elementus Technologies, Huawei, Infosys,

7 13583

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Un-Answered Questions { Core Java }

How to perform merge sort in java?

572

Can constructor be synchronized?

527

What is meant by singleton class?

582

Can we clone singleton object?

547

What does the string method compareto () do?

527




Is java 9 released?

516

Why java is used everywhere?

580

What is the difference between a synchronized method and a synchronized block?

588

What is the difference between actual and formal parameters?

497

what is the difference between Object Based Language and Object Oriented Language?

587

Does A Class Inherit The Constructors Of Its Superclass?

528

What is the definition of tree ?

574

Can a static class have a constructor java?

531

How do you remove an object from an arraylist in java?

449

What is nested class?

554

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