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Core Java Interview Questions
Questions Answers Views Company eMail

What is a Presistent Object?

InfoAxon Technologies,

633

How do you find the maximum number from an array without comparing and sorting?

BlackRock,

629

What do you mean by a JVM?

GE,

552

Explain the selection sort algorithm and state its time complexity?

Flextronics,

593

Give me an example of array and linked list? Where they can be used?

Ericsson,

547

What is meant by 'bit masking' in java?

DELL,

638

If we allocate the memory using 'new' & de-allocated using 'free' then what will happen?

CDAC,

584

What is an interoperable application in java ?

HCL,

579

These static constructors are correct ? class A { statc intA() { } static A(int x,int y) { } static A(int x) { } }

HCL,

593

What is the difference between Error, defect,fault, failure and mistake?

HCL,

650

What are assertions in java?

Impetus,

1 1292

How are java objects passed to a method and what are native methods?

Genpact,

585

What is scope & storage allocation of global and extern variables? Explain with an example

IBS,

573

Explain with example the concept of constant variable in java.

HCL,

615

what is the purpose of "virtual"?

EDS,

561

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Un-Answered Questions { Core Java }

What does index mean in java?

529

Which software is used for java programming?

546

What is java jit compilers?

553

what is mutual exclusion? : Java thread

545

What do you understand by Header linked List?

587




Can classes declared using the abstract keyword cab be instantiated?

552

please send me hr interview questions in it industry

1654

If two threads have same priority which thread will be executed first ?

837

How can we find the actual size of an object on the heap?

796

which class is the wait() method defined in? : Java thread

516

What is the purpose class.forname method?

549

Is a boolean variable?

511

What is a platform?

534

Are functions objects in java?

535

How do I get a substring?

519

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