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

Core Java Interview Questions

Questions Answers Views Company eMail

How to create an interface?

629

Why convert an applet to an application?

622

How to use Media tracker Class.

648

How to use string tokenizer class.

624

Explain the overview of UDP messaging.

737

How to create com object in Java?

653

Explain the Propertie sof class?

591

When object is created and destroyed?

642

Explain the JDB in depth & command line.

575

Give example to differentiate between call by value and call by reference.

TCS,

597

Can you declare a private method as static?

TCS,

703

How do you classify Dialog Box?

CGI,

652

What happens when main () method is declared as private?

Tech Mahindra,

654

If try block is successfully executed, Then Is Finally block executed?

PUCIT,

615

What is final, finally, finalize?

603

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Un-Answered Questions { Core Java }

What is a local class in java?

590

Difference between method overloading and method overriding in java ?

578

If system.exit (0); is written at the end of the try block, will the finally block still execute?

624

How do I print a “?

580

Can we serialize arraylist in java?

548

What is the protected method modifier?

565

Is hashset ordered?

555

What is the difference between compile-time polymorphism and runtime polymorphism?

570

Is singleton class thread safe?

542

What is == in java?

570

What is a arraylist in java?

562

How many bytes is a unicode character?

512

What is difference between path and classpath?

566

How do I convert a numeric ip address like 192.18.97.39 into a hostname like java.sun.com?

607

What is an empirical question?

546

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