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Core Java Interview Questions
Questions Answers Views Company eMail

What is the purpose of setAutoCommit() ?

Google,

1 5559

What is the difference between JDBC 1.0 and JDBC 2.0?

Corent Technology,

2700

What is the difference between Resultset and Rowset.

IBM, Wipro,

6 34376

Why is prepared Statement, Callable Statement used for? What is the need of Batch updates?

Logica CMG,

1 12942

What is the USE of Null interfaces ??...if thers nothing inside these interfaces how are they used and WHy are they used ???? No 1 has given a proper description yet

 1 3423

what is jdk1.5 features?

AMS, Virtusa,

6 21204

v-model life cycle

Virtusa,

1616

if u open login & logout ,how can udisplay the timelogin & logout members ?

Virtusa,

1746

what is multithreading?

Virtusa,

5 8787

what is abstract method with example?

Infosys, Virtusa,

6 15095

how to print output with out using sop statements

UHG,

5 8860

what is auto boxing

UHG,

3 11083

real time example for deadlock,starvation,livelock

 5 19147

whatis Home interface and Remoteinterface? with example?

Saksoft,

1539

what is business delegate?

TCS,

2 5660

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Un-Answered Questions { Core Java }

Why string objects are immutable in java?

563

Explain what pure virtual function is?

588

What is java Applet?

641

what is the difference between preemptive scheduling and time slicing? : Java thread

527

Is list thread safe in java?

484




What is the definition of tree ?

584

What does split function do in java?

529

What is subsequence of a string?

596

What is java instanceof operator?

558

Why arraylist is not synchronized in java example?

462

What are the main concepts of oops in java?

587

What is core java called?

522

Explain about exception propagation?

582

What do you mean Abstraction in java?

602

This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }

555

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