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

Advanced Java Interview Questions

Questions Answers Views Company eMail

What are the design considerations while making a choice between using interface and abstract class?

754

What is permgen or permanent generation?

765

Difference between loadclass and class.forname?

797

Are enterprise beans allowed to use thread.sleep()?

881

What is clustering? What are the different algorithms used for clustering?

795

What is the diffrence between a local-tx-datasource and a xa-datasource?

794

Is there a guarantee of uniqueness for entity beans?

748

What is re-entrant. Is session beans reentrant. Is entity beans reentrant?

805

What do you need to set-up a cluster with jboss?

801

What are the call back methods in entity bean?

774

What is jboss?

766

What is chat area? Explain.

762

Is it possible to stop the execution of a method before completion in a sessionbean?

813

What is the difference between the ‘font’ and ‘fontmetrics’ class?

848

What is the diffrence between a local-tx-datasource and a xa-datasource? Can you use transactions in both?

773

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Un-Answered Questions { Advanced Java }

What is a tasks priority and how is it used in scheduling?

762

What is the purpose of the finally clause of a try-catch-finally statement?

767

What is in-memory replication?

762

What is threadfactory?

847

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

2213

Why does the tag url-encode javascript and mailto links?

782

Define aop(assepct oriented programing)?

895

what is handle?

2084

How a component can be placed on Windows?

2483

Why are my checkboxes not being set from on to off?

891

What is the purpose of the wait() method?

817

Why are component architectures useful?

788

what are the advantages of JTA over JTS?

1902

Which containers use a border layout as their default layout?

833

What is colon_pkg_prefixes and what is its use?

2203

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