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 do you meant by Runtime Polymorphism?

BVIMR, IBM, Persistent,

13 36011

How to call static method?

Epoch,

4 8833

Difference between ?System.out.println? and ?System.error.println??

Sai Softech,

8 28480

Difference between abstract class and Interfaces?

CTS, iFlex, PA Consulting, Sai Softech, Value Chain,

7 16624

what is the use of declaring constructor as private?

Cyient, IVY Technologies, Sai Softech, Virtusa,

5 15105

Difference between array and arraylist.

Arise Solution, Banca Sella, iFocus, NIC, Sai Softech, Solartis, TCS, Verizon,

23 156781

Difference between Hash Table and Hash Map?

Persistent,

10 22807

Features of Java?

4 7239

Difference between overloading and overridding?

4 8904

Keywords in Exceptions?

2 5315

write the hierarchy of component class?

1 4218

what are the differences between final,finally,finalize methods?

IBM,

14 50647

what is the difference between multitasking and multithreading?

TCS,

21 81494

why java is not supporting multiple inheritence?

3 6419

what are the diffrences between interface and abstract class?

4 7868

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Un-Answered Questions { Core Java }

Can we call thread start () twice?

964

What is the purpose of a default constructor?

1099

What is the synonym of string?

1095

How to sort numbers in java without array?

988

What is integer valueof?

1110

How do you sort a string in java?

963

How do you delete a list in java?

952

What is numeric function?

1018

What is the difference between length and length() method in java?

1120

What is difference between static variable and global variable?

1065

What are the approaches that you will follow for making a program very efficient?

1078

Difference between method overloading and overriding.

1083

What is garbage collection? What is the process that is responsible for doing that in java?

1104

Difference between character constant and string constant in java ?

1022

I am a fresher and know core java, c languge, html, css etc if I am illegible for any job then send it on my email tatranakshay276@gmail.com

1701

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