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

Core Java Interview Questions

Questions Answers Views Company eMail

What is the purpose of setAutoCommit() ?

Google,

1 6260

What is the difference between JDBC 1.0 and JDBC 2.0?

Corent Technology,

3186

What is the difference between Resultset and Rowset.

IBM, Wipro,

6 36563

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

Logica CMG,

1 13786

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 4304

what is jdk1.5 features?

AMS, Virtusa,

6 23043

v-model life cycle

Virtusa,

2043

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

Virtusa,

2285

what is multithreading?

Virtusa,

5 10332

what is abstract method with example?

Infosys, Virtusa,

6 17005

how to print output with out using sop statements

UHG,

5 10530

what is auto boxing

UHG,

3 12272

real time example for deadlock,starvation,livelock

5 20748

whatis Home interface and Remoteinterface? with example?

Saksoft,

2006

what is business delegate?

TCS,

2 6566

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Un-Answered Questions { Core Java }

Explain listiterator and methods in listiterator?

1021

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

1205

What are the different types of inheritance in java?

991

Which collection allows duplicate values in java?

971

What variables are stored in stack?

973

What is autoboxing in java?

1066

How do you create a bulleted list?

1253

Can we have more than one package statement in the source file?

1058

What does .equals do in java?

1096

If a variable is declared as private, where may the variable be accessed?

1059

Is linkedlist thread safe in java?

998

Is minecraft java edition free?

1119

Is java map thread safe?

962

What is hashtable and explain features of hashtable?

989

Tell me the Importent classes in net package?

1999

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