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Core Java Interview Questions
Questions Answers Views Company eMail

what are the disadvantages of indexes in oracle?

3i Infotech, Wells Fargo,

1857

How we get some middle records in one table?

3i Infotech,

2 5425

tell me some common

TCS,

2 3548

Which is the best way of exception handling?

Oracle,

2 5909

what is the difference between System.exit() and System.exit(1)?

eClinical Solutions, eClinical Works, eClinicalWorks,

1 6328

Can there be an abstract class with no abstract methods in it?

 1 3158

can any one send me the example program of immutable class?

Arfin, TCS,

2 4318

There are 100 keys and values in HashMap.how to get the keys and values?

IBS,

1 5748

what is the diffrences between platform independent and portable

TCS,

5 21285

Java support call by reference (pass by reference) ?

HCL,

1 3825

System.out & System.in are final static data member of System class but we can change there reference through setOut() & setIn() method how...

FCS, TCS,

2 5007

difference between vectorlist and hash

TCS,

1 3538

why HashTable not allow null key and value

Crimson Logic,

2 21277

why string constant pool in java

TCS,

2 7933

why top level class could not be static

L&T,

3 11642

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Un-Answered Questions { Core Java }

What is a finally block? Is there a case when finally will not execute?

541

What is the difference between integer parseint and integer valueof?

542

What if I write static public void instead of public static void in java?

572

What is package private scope in java?

526

What is locale?

594




What are "methods" and "fields"?

567

Can we create an object if a class doesn't have any constructor ( not even the default provided by constructor ) ?

544

What are the differences between path and classpath variables?

483

What is the difference between normal report & matrix report?

559

What is main method?

531

What do you mean by constructor?

540

How do you start a thread?

540

Is it possible to override the main method?

525

What is mvc in java?

551

List the interfaces which extends collection interface?

525

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