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Java J2EE Interview Questions
Questions Answers Views Company eMail

There are two classes named classa and classb. Both classes are in the same package. Can a private member of classa can be accessed by an object of classb?

 1483

What is the base class in java from which all classes are derived?

 973

Can we declare a class as abstract without having any abstract method?

 995

Which of the following classes will have more memory allocated?

 1014

Does importing a package imports its sub-packages as well in java?

 966

How objects of a class are created if no constructor is defined in the class?

 1063

Give an example of use of pointers in java class.

 1025

I want to persist data of objects for later use. What is the best approach to do so?

 1051

What is the purpose of static methods and static variables?

 1069

What are java packages?

 1025

What are the performance implications of interfaces over abstract classes?

 1 3653

How can you generate random numbers in java?

 1047

When a lot of changes are required in data, which one should be a preference to be used? String or stringbuffer?

 1237

How can an exception be thrown manually by a programmer?

 989

How we can execute any code even before main method?

 1132

Un-Answered Questions { Java J2EE }

What is thread count in java?

1003

What is thread pool in java with example?

994

What will happen when you compile and run the following code?

952

How do you ensure that n threads can access n resources without deadlock?

1306

Is a spring bean a singleton?

385

Why do we create threads in java?

1238

Explain inheritance in java?

982

Is static a singleton?

967

What is a transactional process?

470

What is treeset in java?

994

Explain how hashmap works?

1059

what is the role of configuration manager?

894

How to test jdbc connection to sql server?

1016

What are the various types of entity beam?

1016

How do I configure weblogic to use a socks proxy? : BEA Weblogic

949

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