Interview questions

JAVA interview questions – page 68

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  1. Difference between flush() and commit() in hibernate?

  2. Class A{private int i;}class B extends A{ private int i;}if I create an object of B class what will be the memory of that object.

  3. Why object class is a parent of all classes in java?

  4. Create a Function module that can be called from JAVA using JCo with an example.

  5. Whats is mean by tiles in struts

  6. How to call static method in Java?

  7. How to find the heap memory of managedServer?

  8. In a my eclipse editor if i want to switch from jdk 1.4 tojdk 1.6 how to do that? Initially i have jdk1.4

  9. If we lost Admin password(unfortunately), how will you enterinto Admin console?

  10. Whats is mean by connectionpooling

  11. There are some duplicate values in ArrayList, how U'll getthat array with out duplicate?

  12. Explain the collection in java

  14. Diff between jsp include directive and jsp action include?

  15. What Is EJB Clustering? Explain the Functionality?

  16. What is the difference between JDBC 1.0 and JDBC 2.0?

  17. How to make hashmap object as synchronized object?

  18. How will you create the class for the following scenario? Employees under one employee?

  19. How can i obtain the following with jcl ok here goes i have a file for emample mary.test1, extract from the file the following ssn from column 7 '123551212' into a separate dataset.2 , create second jobstep to extract from the data set created the following fund code '113' from column 7 into yet another dataset

  20. What is generics in jdk1.5?

  21. Whether the connectionpooling used in struts?

  22. What is Java stack? Briefly describe about Java Stack and its usage!

  23. Advantages of Inheritance in java.

  24. Can we override static methods?

  25. When we use the static methods

  27. What are the types of statement? explain

  28. Can u write constructor in abstract.If yes den when it willbe invoked.

  29. Difference between applicationserver and webserver

  30. In ABAP/4 programs how do u access data present in presentation server and on an application server.

  31. What exactly happens when we execute"Class.forname("Driver class name");"? Explain indetail

  32. What is the Super Class of Exception in java?

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