Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

What is a default constructor and also define copy contrucyor?

Global Logic,

1111

Why use string handling in Java?

HCL,

1030

Explain heap sort?

Flextronics,

1123

What are recursive functions? Give some examples?

Axtria, ITC Indian Tobacco Company,

1193

How do you access command-line arguments within the code?

Flextronics, Hexaware,

1060

What is the difference between static and global variables and also define what are volatile variables?

Flextronics, Hexaware,

1051

What is a Hash Table? What are the advantages of using a hash table?

Ciena,

1088

What is a Transient Object?

InfoAxon Technologies,

1085

Why declare Main() method as a static in java ?

HCL,

1079

This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }

HCL,

989

What are memory tables?

Aspiring Minds,

1096

Explain the selection sort algorithm?

Hexaware,

1061

What are daemon Threads in java?

Impetus,

1204

What is the basic concepts of OOPS?

BlackRock,

1201

What is backdrop?

Atos Origin,

1069

Un-Answered Questions { Java J2EE }

What is the need of struts?

980

Does java list allow null?

990

What is thread life cycle in java?

1063

How would overload a function based on return type?

969

What is aop scoped proxy in spring?

467

What are the differences between heap and stack memory in java?

1057

What do you mean by action errors and what are the results they force?

1051

what is the purpose of the wait(), notify(), and notifyall() methods? : Java thread

994

What is the difference between struts1 and struts2?

926

What are the benefits of hibernate over jdbc?

381

What is the difference between ejb and java beans?

1010

What are the technologies a java developer must know?

902

What happens if acknowledge() is called within a transaction? : BEA Weblogic

960

What do you understand by mime type?

996

What does hibernate show_sql true means?

535

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