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 garbage collection in Java, and how can it be used ?

Accenture, HCL, Infosys, Sara, SITS, TCS, Wipro,

32 95853

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28680

Differentiate constructor and a method and how are it be used?

Wipro,

7 29341

What is an abstract class?

DBS, Wipro,

8 27746

How can final class be used?

Accenture, Wipro,

5 27474

By what default value is an object reference declared as an instance variable?

Wipro,

1 26554

Java support what type of parameter passing ?

Wipro,

7 20193

Explain the term serialization?

Wipro,

10 31391

Is there is any error if you have multiple main methods in the same class?

Infosys, Wipro,

10 33549

What is Overriding and how can it be used?

Consagous, Wipro,

7 33267

How is serialization used generally ?

3 21358

How are Swing and AWT be differentiated?

Wipro,

3 22379

Explain pass by reference and pass by value?

IBM, Wipro,

8 32509

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25475

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 74444

Un-Answered Questions { Java J2EE }

What are the advantages node manager?

970

What is a 4 tier architecture?

461

What is string substring?

1172

What is a percentage sign called?

1123

What is interpreter in java?

843

Explain the difference between abstract class and interface in java?

983

What is handler method in spring?

478

What is the use of @qualifier in spring boot? : Spring Boot

557

What is the difference between get and load method?

468

What is the difference between portlet and servlet?

996

What is Recursion Function?

1200

How does a for loop work?

988

What is ORM?

429

What is the different types of functions?

1057

What is meant by jndi and why its needed??

974

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