Computer And It

1. What is the diffrence between an Abstract class and Interface ?

2. What is user defined exception ?

3. What do you know about the garbate collector ?

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

5. Explain RMI Architecture?

6. How do you communicate in between Applets & Servlets ?

7. What is the use of Servlets ?

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

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

10. What is the difference between Process and Threads ?

11. What is the difference between RMI & Corba ?

12. What are the services in RMI ?

13. How will you initialize an Applet ?

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

15. When is update method called ?

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

17. Have you ever used HashTable and Dictionary ?

18. How will you communicate between two Applets ?

19. What are statements in JAVA ?

20. What is JAR file ?

21. What is JNI ?

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

23. What is JFC ?

24. What is Difference between AWT and Swing ?

25. Considering notepad/IE or any other thing as process, What will happen if you start notepad or IE 3 times? Where 3 processes are started or 3 threads are started ?

26. How does thread synchronization occurs inside a monitor ?

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

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

29. Why do you Canvas ?

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

31. What are 4 drivers available in JDBC ?

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

33. If you are truncated using JDBC, How can you know ..that how much data is truncated ?

34. And What situation , each of the 4 drivers used ?

35. How will you perform transaction using JDBC ?

36. In RMI, server object first loaded into...