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

How we can declare a static variable?

HCL,

1110

Write a function to print Fibonacci series and Tribonacci series?

Hexaware,

1184

How we create object in copy constructor?

HCL,

1125

Do we need to manually write Copy Constructor?

HCL,

1033

Why declare Main() inside the class in java ?

HCL,

1063

What is the use of using enum to declare a constant?

Fidelity,

1029

What is scope & storage allocation of static, local and register variables? Explain with an example.

IBS,

1014

How will you reverse a link list without using recursion?

Global Logic,

1033

What is meant by stack and queue?

GrapeCity,

1071

What is the difference between heap memory and stack memory?

Aspiring Minds,

1073

What Is Query Throttling in java?

HCL,

999

What do you mean by Function Overloading in java?

Impetus,

1179

How to remove the trailing spaces from a string?

Infogain,

1274

how many types of Inheritance?

Impetus,

1176

Difference between a process and a program?

Infosys,

1115

Un-Answered Questions { Java J2EE }

Is string a class in java?

985

mention what are the important component of web-sphere?

941

What is regex used for?

992

in a scenario where an administrator needs to migrate the entire application server profiles from v6.1 to v8 using profile management tool (pmt) and he wants to keep all windows services created for these profiles, how to make sure that these windows services are kept after migration process?

828

Can an interface have a constructor?

973

What is unmodifiable list in java?

962

What is dao layer in spring boot? : Spring Boot

406

can we use mqput1 in java?

844

What if memory allocation using new fails in C++ how to handle

128

What is persistence context in spring?

456

What is spring jdbc template?

533

Explain portal architecture.

854

Can we use a switch statement with strings?

1053

What is bidirectional causality?

367

What happens when a thrown exception is not handled?

1114

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