Interview questions

JAVA interview questions – page 41

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  1. What you know about Corba implementation in Java ?

  2. Why single inheritance cannot be use in java/why we alwayz use multiple inheritances?

  3. For which statements does it make sense to use a label?

  4. If interface & abstract class have same methods & abstract class also not contain any implementation for those methods which one you prefer ?

  5. How does the InfoBus relate to JavaBeans?

  6. How to use JNI in java?

  7. How many times may an object's finalize() method be invoked by the garbage collector?

  8. Explain working of Java Virtual Machine(JVM).

  9. Write a program for recursive Traverse?

  10. What is the InfoBus?

  11. How you will save the data across different pages for a particular client request using Struts?

  12. In which case i can go for Anonymous class?

  13. What modifiers can be used with a local inner class?

  14. How single threaded model works after implementation in class, basically architecture point of view.

  15. What are the advantages of OOPL?

  16. How and when will the JavaBeans Migration Assistant to ActiveX be available?

  17. What is working of bean in EJB

  18. What is the meaning of "final" keyword?

  19. What is differnce between byte code and unicode?

  20. What is the difference between application server & web server ?

  21. What is the difference between stateless session and state full session bean? give example?

  22. How are the elements of a CardLayout organized?

  23. What is the difference in between the HTTPServlet and Generic Servlet. Expalin their methods. Tell me their parameter names too?

  24. Will the general public have access to the InfoBus API's?

  25. How hashtable is synchronized?why hashmap is not synchronized? Can we make hashmap synchronized?

  26. What is a green thread?

  27. What is the purpose of the System class?

  28. How can a GUI component handle its own events?

  29. Is JavaBeans a complete component architecture?

  30. What is main purpose of interface?

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