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Java J2EE Interview Questions
Questions Answers Views Company eMail

Who developed java?

 751

What is finalize() function in java?

 743

Explain the inheritance?

 757

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

 719

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

 782

Explain the difference between jdk, jre, and jvm?

 797

What is java virtual machine? Explain

 762

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

 740

What is "this" keyword in java? Explain

 862

how we can create packages in java?

 704

What is abstract class? Explain

 774

what is instanceof operator used in java?

 773

How we can generate random numbers in java?

 842

What do you mean by local variable and instance variable?

 699

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

 791

Un-Answered Questions { Java J2EE }

What is qualitative variable?

722

What are conditionals and its types?

818

What are the restrictions imposed on method overriding?

767

What is detached object in hibernate?

310

What mechanism does java use for memory management?

705

If we opened Windows Internet Explorer 4 times, does it starts 4 processes or 4 threads?

1969

What is ejb in weblogic?

752

Is an array a vector?

735

Public serversocket(int port, int queuelength) throws ioexception, bindexception?

858

What are the important tags of hibernate.cfg.xml?

230

Explain what are the transaction isolation levels supported by weblogic jdriver?

727

What is the difference between form & report?

794

What is difference between hibernate save(), saveorupdate() and persist() methods?

230

Can I declare class as static or private?

740

What is java util list?

655

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