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 4889

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 4891

what is a Daemon Thread?

2 5248

How to synchronize jsp page?

Infotech, TCS,

1 7370

what are design patterns in java?give with example?

HCL, iGate,

2 7020

Why JDBC has introduced

4 8548

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

1 4006

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

iTrust,

1 4442

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 7500

How many JSP scripting elements and what are they?

TCS,

4 7360

What are the implicit objects?

HCL,

2 7945

which book is better for jdbc ,servlets and jsp

TCS,

2106

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

SAP Labs, TCS,

2282

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

1 2959

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

1 4529

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Un-Answered Questions { Advanced Java }

What is a modular application?

1082

What is local interface. How values will be passed?

1026

What is the immediate superclass of the applet class?

1088

What method is invoked to cause an object to begin executing as a separate thread?

1040

Difference between hashmap and hashtable?

1156

What is permgen or permanent generation?

1028

How would you detect a keypress in a jcombobox?

1140

What is the difference between java class and bean?

1085

What is the relation between the infobus and rmi?

1007

What are the pros and cons of detached objects?

984

Why is actionform a base class rather than an interface?

1064

Explain the different types of memory used by jvm?

1146

how to make a index.jsp for running the site in internet and find an error for connection with weblogic server and java that give an error invalid object name.and how to maintain session.

2242

What is threadfactory?

1100

What are the benefits of detached objects?

1054

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