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 6355

What is the difference between JDBC 1.0 and JDBC 2.0?

Corent Technology,

3232

What is the difference between Resultset and Rowset.

IBM, Wipro,

6 36774

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

Logica CMG,

1 13877

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 4440

what is jdk1.5 features?

AMS, Virtusa,

6 23256

v-model life cycle

Virtusa,

2104

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

Virtusa,

2331

what is multithreading?

Virtusa,

5 10523

what is abstract method with example?

Infosys, Virtusa,

6 17231

how to print output with out using sop statements

UHG,

5 10751

what is auto boxing

UHG,

3 12417

real time example for deadlock,starvation,livelock

5 20912

whatis Home interface and Remoteinterface? with example?

Saksoft,

2044

what is business delegate?

TCS,

2 6681

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Un-Answered Questions { Core Java }

Explain the difference between jvm and jre?

1082

Explain about varargs in java?

1189

Are global variables initialized to zero?

1007

What is the generic class?

1022

What is a programming object?

1186

What is the use of toarray () in java?

1123

How do you sort words in java?

992

What is the Scope of Static Variable?

1280

Can a set contain duplicates?

1007

Is java a security risk?

1093

What is the escape character in java?

1040

What is fundamental datatype?

1060

Explain about public and private access specifiers?

1128

What is the common usage of serialization?

1229

What do you understand by looping in java? Explain the different types of loops.

1095

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