Java Interview Question Paper Set-5

51.Why is java not 100% pure OOPS?

52.When will you use an interface and abstract class?

53.What is exact difference in between Uni-cast and Multi-cast object? Where will it be used?

54.What is the functionality of Prepared statement?

55.What is meant by Static query and Dynamic query?

56.What are Normalization rules? Define Normalization?

57.What is meant by servlet? What are the parameters

of service method?

58.What is meant by session? Explain something about HTTP session class?

59.In a container there are 5 components. I want to display all the component names, how will you do that?

60.Why there are some null interfaces in Java? What does it mean? Give some null interface in Java?

61.Tell some latest versions in Java related areas?

62.What is meant by class loader? How many types are there? When will we use them?

63.What is meant by flickering?

64.What is meant by distributed application? Why are we using that in our application?

65.What is the functionality of the stub?

66.Explain about version control?

67.Explain 2-tier and 3-tier architecture?

68.What is the role of web server?

69.How can we do validation of the fields in a  project?

70.What is meant by cookies? Explain the main features?

71.Why Java is considered as platform independent?

72.What are the advantages of Java over C++?

73.How Java can be connected to a database?

74.What is thread?

75.What is difference between Process and Thread?

Java Interview Question Paper Set-4

26.What is the corresponding layout for card in swing?

27.What is light weight component?

28.Can you run the product development on all operating systems?

29.What are the benefits if Swing over AWT?

30.How can two threads be made to communicate with each other?

31.What are the files generated after using IDL to java compiler?

32.What is the protocol used by server and client?

33.What is the functionability  stubs and skeletons?

34.What is the mapping mechanism used by the java to

identify IDL language?

35.What is serializable interface?

36.What is the use of interface?

37.Why does java not support multiple inheritance?

38.Why java is not fully objective oriented?

39.What is the root class for all java classes?

40.What is polymorphism?                                        

41.Suppose if we have a variable ‘I’ in run method, if I can create one or more thread each thread will

occupy a separate copy or same variable will be shared?

42.What are virtual functions?

43.Write down how will you create binary tree?

44.What are the traverses in binary tree?

45.Write a program for recursive traverse?

46.What are session variable in servlets?

47.What is client server computing?

48.What is constructor and virtual function? Can we call a virtual function in a constructor?

49.Why do we use OOPS concepts? What is its advantage?

50.What is middleware? What is the functionality of web server?

Java Interview Question Paper Set-3

1.What is the difference between an Abstract class and interface?

2.What is user defined exception?

3.What do you know about her garbage collector?

4.What is the difference between java and c++?

5.In an HTML form I have a button which makes us to open another page in 15 seconds. How will you do this ?

6.What is the difference between process and threads?

7.What is update method called?

8.Have you ever used Hash table and Directory?

9.What are statements in Java?

10.What is a JAR file?

11.What is JNI?

12.What is the base class for all swing components?

13.What is JFC?

14.What is the difference between AWT and Swing?

15.Considering notepad/IE or any other thing as process, what will happen if you start notepad or IE

three times? Where three processes are started or three threads are started?

16.How does thread synchronization occur in a monitor?

17.Is there any tag in HTML to upload and download files?

18.Why do you canvas?

19.How can you know about drivers and database information?

20.What is serialization?

21.Can you load the server object dynamically? If so what are the three major steps involved in it?

22.What is the layout for toolbar?

23.What is the difference between Grid and Gridbaglayout?

24.How will you add panel to a frame?

25.Where are the card layouts used?

Java Interview Question Paper Set-2

25. What are the benefits of Swing over AWT?

26. What is Servlet API used for connecting database?

27. What is difference in between Java Class and Bean?

28. What is the difference between Application and Applet?

29. What is the root class for all Java classes?

30. What is polymorphism? 

31. What is the exact difference in between Unicast and Multicast   object? Where we will use?

32. What is the difference in between C++ and Java? Can you explain in  detail?

33. Have you used threads in Servelet?

34. In a Container there are five components. I want to display the all  the components names, how will you do that one?

35. Why there are some null interfaces in Java? What does it mean? Give me some null interfaces in JAVA?

36. Tell me the latest versions in JAVA related areas?

37. Explain 2 tier and 3 tier Architecture?

38. How have you done validation of the fields in your project?

39. What are the main difficulties that you are faced in your project?

40. What is meant by cookies? Explain?

41.what is the difference between rmi registry & os agent.

42.what is the layout of the tool bar.

43.what is statement in java.

44.what are the 5 packages in java. (java.lang, java.util, java.sql, java.awt, java.io)

45.how do you send data from form to server?(get & post)

what is xml and dhtml

Java Interview Question Paper Set-1

1. What is the difference between C++ & Java?

2. Explain RMI Architecture?

3. How do you communicate between Applets & Servlets?

4. What is the use of Servlets?

5. What is JDBC? How do you connect to the Database?

6. In an HTML form I have a Button, which makes us to open another page  in 15 seconds. How will do you that?

7. What is the difference between Process and Threads?

8. How will you initialize an Applet?

9. What is the order of method invocation in an Applet?

10. How will you pass values from HTML page to the Servlet?

11. How will you communicate between two Applets?

12. What are statements in JAVA?

13. What is JAR file?

14. What is the base class for all swing components?

15. What is JFC?

16. What is Difference between AWT and Swing?

17. How will you call an Applet using a Java Script function?

18. How can you push data from an Applet to Servlet?

19. What are 4 drivers available in JDBC?

20. How you can know about drivers and database information? 

21. And in what situation, each of the four drivers are used?

22. How will you perform transaction-using JDBC?

23. Suppose server object is not loaded into the memory, and the client  request for it, what will happen?

24. Can you load the server object dynamically? If so, what are the major 3 steps involved in it?