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

Advanced Java Interview Questions

Questions Answers Views Company eMail

i have a 1000 objects in data base i need to display those in jsp's how can i retrive those objects in jsp. (consider the performance issue)

2 4870

What is the O/P of the below Code Snippet ? And how does it imply the concept of call-by-value/call-by-reference. (Note : Pls ignore syntx errors) public class One { sop ("Into One--"); } public class Two extends One{ sop ("Into Two--"); } public class Home { One a; Two t; public static void main(argv[]) { sop ("In Home--"); sop(One.a); sop(Two.a); sop(One.t); sop(Two.t); } }

Wipro,

2 4866

what is a Daemon Thread?

2 5230

How to synchronize jsp page?

Infotech, TCS,

1 7350

what are design patterns in java?give with example?

HCL, iGate,

2 6998

Why JDBC has introduced

4 8523

which is the better collection class if the requirement is only displaying the data

1 3991

if i know the lenght of collection in hand, should I use Array or Arraylist? justify

iTrust,

1 4422

1) what is synchronization? 2)write a program to show synchronization ? 3) what is orm? 4) what is getTemplete method and hw u use it? 5)write a singleton program ? 6) what is IOC concept & explain it? 7) methods of spring? 8)explain spring framework? 9)what are the oops concept? 10)what r the diff types of exception? 11)what is AOP(assepct oriented programing)? 12)jsp life cycle? 13)servlet life cycle? 14)how to u catch ur exception when executing a query in hibernate? 15)write javascript function? 16)write a querry to join two tables? 17)wap to show inheritance and use of interface? 18)explain the project? 19)in spring bean class uses singleton or prototype? 20)Explain prototype?

Cap Gemini,

1 7491

How many JSP scripting elements and what are they?

TCS,

4 7337

What are the implicit objects?

HCL,

2 7923

which book is better for jdbc ,servlets and jsp

TCS,

2099

how to use debug in my elipse to solve problems that exist in my project

SAP Labs, TCS,

2276

which of the following authentication is stronger than the others? a. Http Basic b. Http DIGEST c. Form based

1 2947

which deployment descriptor element is used to configure the authentication method? a. auth-config b. login-config c. sec-config

1 4518

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Un-Answered Questions { Advanced Java }

What is permgen or permanent generation?

1021

What’s jboss cache in short?

1113

Is there a guarantee of uniqueness for entity beans?

998

we use MainFrame and using os390 for operating system with DB2 data base in IRAN and interest programing with java and use webspere for world wide,please help me where i should start?

2415

Define the remote object implementation?

2497

How can I avoid validating a form before data is entered?

995

Which javutil classes and interfaces support event handling?

1036

Which component handles cluster communication in jboss?

1101

What is the difference between the session.update() method and the session.lock() method?

1000

Why is string immutable in java?

1091

What is a modular application? What does module-relative mean?

1051

Explain ioc concept?

1138

What are the sequence of steps to write pub or sub model kind of application?

2515

Can I use multiple html form elements with the same name?

1048

How would you reatach detached objects to a session when the same object has already been loaded into the session?

1198

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