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Core Java Interview Questions
Questions Answers Views Company eMail

what are the major differences between jdk1.4 and jdk1.5?

Cap Gemini, Crimson Logic, Infosys, TCS, Tenth Planet,

2 12424

In treeset we add same object ...what will be the out put

3 3313

why java main method is given as static method?

2 2811

what is Abstract DataType?

1 2345

why operator overloading is removed in java?

1 2875

wat is final...? wat is finally...? wat is finalize....? difference between " final and finally and finalize "...?

2 2827

can we override the main() method in java????

Vimukti Technologies,

3 4786

please write java program of instanceOf keyword implementation

TCS,

2 3007

Hi i am creating desktop application in that i want calling to mobile number. i have java telephone api (JTAPI) but i dont understand how it configure & use plese help me

1056

How to extract HashMap values?

Marlabs,

5 8614

How to Create A Wapper Class in core Java and Why are Use in java?

Amdocs,

2 5007

Difference between hashCode() & equals()?

HCL,

3 5749

What is the reason that multiple inheritance is not possible in java??

1 2390

Why are the destructors for base class and derived class called in reverse order when the program exits

HCL,

1360

Definition for connection pooling?

3 3230


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Un-Answered Questions { Core Java }

What is java dot?

175


Explain the differences between static and dynamic variables?

217


What is lifetime variable?

172


Explain about wait() method?

213


Is a copy constructor?

186






What are parsers? Dom vs sax parser.

199


What is the difference between a factory and abstract factory pattern?

247


Can we create constructor in abstract class ?

232


What is jvm? How its run?

251


What is java developer skills?

180


What is collection class in java?

187


What is the file type?

212


Can we create a class inside a class in java?

184


How do you declare a destructor in java?

169


What is a literal coding?

178