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

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Java J2EE Interview Questions

Questions Answers Views Company eMail

Difference between doublesummarystatistics, intsummarystatistics and longsummarystatistics ?

1 1049

Difference between final and effectively final ? Why is effectively final even required ?

1 1060

Similarity and difference between static block and static method ?

1 993

Difference between class#getinstance() and new operator ?

1 1297

What is a lambda expression ? What's its use ?

1 1170

Describe what happens when an object is created in java ?

1 1085

Difference between == and .equals() ?

1 1049

What are default methods ?

1 1118

Does constructor creates the object ?

1 1094

What are the difference between composition and inheritance in java?

1 1105

How is abstraction implemented in java ?

1 1108

How can we disable a constraint ?

1 1091

Does sql allow null values ? Can we use it within where clause ?

1 1048

Write an sql to find all records having all numeric characters in a field ?

1 1046

Explain the difference between inner and outer join ?

1 1118

Un-Answered Questions { Java J2EE }

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2409

What is action chaining ?

1148

How to create a base64 decoder in java8?

1119

How to sort array in descending order in java?

976

i want test pattern of zylog company and some examples also

2841

what are the different modes of archival? Explain each mode in two lines each?

983

What is a constructor overloading in java?

1113

Hi frnd can i any one kindly can post for me portlet,hibernate and spring example application and with flow explantion configuration using Jdeveloper.and related links ar tutorials kindly please send me .its urgent for me .thanks in advance...........else can any one send to kondaiah.goddeti@gmail.com

2244

What is difference between @controller and @restcontroller in spring?

520

What is parsing in java?

1022

What is latest hibernate version?

465

What is an object in java and how is it created?

1110

What are the contents on web.xml in struts application ?

1047

How can you inject java collection in spring?

493

Can we return resultset in java?

980

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