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Java J2EE Interview Questions
Questions Answers Views Company eMail

Who developed java?

 572

What is finalize() function in java?

 563

Explain the inheritance?

 577

How we can skip finally block of exception even if some exception occurs in the exception block in java?

 526

What is the base class of all exception classes in java?

 572

Explain the difference between jdk, jre, and jvm?

 595

What is java virtual machine? Explain

 571

how we can make a read-only class in java?

 544

What is "this" keyword in java? Explain

 663

how we can create packages in java?

 520

What is abstract class? Explain

 597

what is instanceof operator used in java?

 597

How we can generate random numbers in java?

 610

What do you mean by local variable and instance variable?

 517

What is the differences between c++ and java? Explain

 588

Un-Answered Questions { Java J2EE }

What is jms and how it works?

441

What is servlet initializer in spring boot? : Spring Boot

167

What does application client module contain?

549

What is a double?

591

How can we store the file in the oracle database?

524




Why don't we write a constructor in a servlet?

592

What is meant by full gc and explain it?

547

What are 3 types of annotations?

176

Do you want to use hibernate 2nd level cache?

141

how can we sync the nodes with administration server in weblogic.

3131

Is merge better than update?

143

Why can't Tomcat find my Oracle JDBC drivers in classes111.zip?

575

What is a stateless session?

506

What is the purpose of @requiredstringvalidator?

564

Why string objects are immutable in java?

567

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