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

Can java hashmap have duplicate keys?

1033

How is java hashmap implemented?

1034

Can you have two constructors in java?

993

How do you declare an array in java?

1067

Is java map thread safe?

972

Is array dynamic in java?

939

Does java set allow duplicates?

1091

Can we increase array size dynamically in java?

954

How to store image in arraylist in java?

980

How do you delete a list in java?

961

Can we declare an array without size in java?

1012

Does java map allow duplicates?

905

Can java arraylist hold different types?

1080

Is arraylist sorted in java?

1008

How do you remove duplicates in java?

1025

Un-Answered Questions { Java J2EE }

What is the purpose of the System class?

1005

How to embed java.util.properties in spring bean?

419

Why do we use return statement?

1046

How are variables stored in memory?

1075

How many JVMs can run on a single machine and what is the meaning of Just-In-Time (JIT) compiler?

1457

What is difference between applet and swing?

1029

I want to store more than 10 objects in a remote server? Which methodology will follow?

3206

State some advantages of java?

1244

Which layout does swing use by default?

986

What are the extension interfaces that are there in hibernate?

347

What is void data type?

996

What are the benefits of operations?

948

What is filter chain?

920

Can we have a method name same as class name in java?

1055

Which sorting is used in arrays sort in java?

1081

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