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Core Java Interview Questions
Questions Answers Views Company eMail

what do you meant by Runtime Polymorphism?

BVIMR, IBM, Persistent,

13 31770

How to call static method?

Epoch,

4 7127

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

Sai Softech,

8 25890

Difference between abstract class and Interfaces?

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

7 14117

what is the use of declaring constructor as private?

Cyient, IVY Technologies, Sai Softech, Virtusa,

5 12870

Difference between array and arraylist.

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

23 149552

Difference between Hash Table and Hash Map?

Persistent,

10 19477

Features of Java?

 4 5352

Difference between overloading and overridding?

 4 7221

Keywords in Exceptions?

 2 4467

write the hierarchy of component class?

 1 3476

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

IBM,

14 46304

what is the difference between multitasking and multithreading?

TCS,

21 75357

why java is not supporting multiple inheritence?

 3 5204

what are the diffrences between interface and abstract class?

 4 6253

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Un-Answered Questions { Core Java }

What do you mean by mnemonics?

521

How do I run java on windows?

519

Discuss about garbage collector in Java.

631

How will you print number in reverse (descending) order in BST.

570

What is difference between path and classpath variables?

556




What is a line separator in java?

529

Can we override the static method?

564

What is thread start?

510

Explain method overloading?

562

Can we create constructor in abstract class ?

570

Which is faster set or list in java?

518

Where is const variable stored?

526

Is java a compiler?

561

Why is the singleton pattern considered to be an anti pattern?

465

v-model life cycle

1614

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