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

Explain the difference between intermediate and terminal operations in java8?

1106

Write a program to print count of empty strings in java 8?

996

Explain spliterator in java8?

1043

Explain the difference between collection api and stream api in java8?

967

How to create a base64 decoder in java8?

1053

What is the difference between array and array list in java?

1221

What is the difference between hashmap and hashtable in java?

1111

What is the difference between hashset and treeset in java?

1058

What is servlet? Explain

1056

What is socket in java?

1058

What is network programming in java?

995

Explain the difference between jakarta struts and apache struts?

937

What do you mean by actionmapping?

960

What is the difference between validation.xml and validator-rules.xml files in struts?

907

How we can configured action mapping in struts?

1006

Un-Answered Questions { Java J2EE }

Hibernate SessionFactory is thread safe?

365

What is the purpose of the main method?

986

What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?

1090

Explain how will the struts know which action class to call when you submit a form?

957

Define canvas?

974

List two java ide’s?

1043

What are the benefits of immutable objects?

1000

Why is stringbuffer faster than string?

915

What is ordered map in java?

989

Name the types of transaction management that are supported by spring?

467

Why did my jdbc code throw a rollback sqlexception? : BEA Weblogic

969

What are managed servers?

1053

How do you use equal in java?

1070

What is singleton service?

960

What is the use of @service in spring?

390

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