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

Does constructor return any value?

1037

What is the nested interface?

1122

What is the reflection?

1014

Is there any case when finally will not be executed?

967

What are the differences between string and stringbuffer?

1139

Can we overload the main() method?

1058

What will be the initial value of an object reference which is defined as an instance variable?

1160

How to set the permissions to a file in java?

1000

What are the disadvantages of using inner classes?

1202

What is the purpose of the finalize() method?

1266

Can a serialized object be transferred via network?

971

What is the purpose of using the java bean?

1068

What are the advantages of defining packages in java?

1003

What are the steps involved to write rmi based programs?

1033

Can we change the scope of the overridden method in the subclass?

1406

Un-Answered Questions { Java J2EE }

What do you mean Abstraction in java?

1105

When we should use serialization?

1043

Why char array is preferred over string for storing password?

1123

Is it possible to compare various strings with the help of == operator?

1010

How to configure second level cache in hibernate?

460

Can we force the garbage collection to run?

971

What is setbounds in java?

1079

What is floor math?

1021

What are mq objects?

856

What do you mean by dependency injection and how does it work?

496

Does list allow duplicates in java?

947

What is a zero to many relationship?

559

How many threads can java run?

1131

What is a queued message?

849

What is the difference between quicksort & mergesort? When should they be used? What is their running time?

1099

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