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

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Struts (701)
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Weblogic (694)
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Java J2EE Interview Questions

Questions Answers Views Company eMail

What are design patterns and please explain?

1090

What are 4 pillers of object orinted programming?

1017

What do you mean by an object in java?

1132

Justify your answer that you can't define a method inside another method in java, if you can then how?

1176

Differentiate between array list and vector in java.

1117

What is outofmemoryerror in java?

Cyient,

1026

What do you understand by classes in java?

1009

Why do we create public static method in java?

1112

Why we do exception handling in java and how many types of exceptions are there?

1127

What is operator overloading. Is it is supported in java?

1030

What is the difference between jdk, jre, and jvm?

1119

What is difference between equals and hashcode method?

1134

What is the purpose of final keyword and when to use it?

1004

What is difference overloading and overriding?

Cyient,

1172

What is difference between throw and throws ?

Cyient,

1139

Un-Answered Questions { Java J2EE }

What is subsequence of a string?

1100

What are authoring and presentation templates?

968

Is hibernate easy to learn?

432

Can you tell me range of byte?

992

How many types of statements are there in jdbc?

932

What is constructor chaining and how is it achieved in java?

1154

What is java volatile?

1052

Describe what a thread-local variable is in java?

1013

Which class contains a method: cloneable or object?

1041

Explain about interthread communication and how it takes place in java?

1025

Which programming language is most secure?

998

What is ioc concept?

1207

Which design pattern the interceptors in struts2 is based on?

924

What are the main classes which are used in struts application?

982

What is dao layer in spring boot?

454

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