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 6366

What is the difference between JDBC 1.0 and JDBC 2.0?

Corent Technology,

3240

What is the difference between Resultset and Rowset.

IBM, Wipro,

6 36802

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

Logica CMG,

1 13887

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 4452

what is jdk1.5 features?

AMS, Virtusa,

6 23281

v-model life cycle

Virtusa,

2115

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

Virtusa,

2336

what is multithreading?

Virtusa,

5 10548

what is abstract method with example?

Infosys, Virtusa,

6 17235

how to print output with out using sop statements

UHG,

5 10775

what is auto boxing

UHG,

3 12432

real time example for deadlock,starvation,livelock

5 20941

whatis Home interface and Remoteinterface? with example?

Saksoft,

2048

what is business delegate?

TCS,

2 6689

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Un-Answered Questions { Core Java }

How many bits is a word?

1071

Is java good for beginners?

1064

Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?

1173

How does map works in java?

1056

Why does java have different data types for integers and floating-point values?

1078

What is keyword and identifier?

1194

Can we define static methods inside interface?

1040

Can we convert stringbuffer to string?

1055

Difference between a class and an object?

1120

What is the difference between menuitem and checkboxmenu item?

1389

How to declare an arraylist in java?

1206

Does string isempty check for null?

1099

How many bits is a char?

1059

Is intellij better than eclipse?

1159

how its run?

1124

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