IBM Interview Questions and Answers Part II

1.What is immutable

   Ans: Which can’t be changed

2. What is main difference hash map and hash table

    Ans: Hash table is synchronized
3. what is main difference between arraylist and vector.

    Ans: Vector is synchronized
4. what is struts framework.

   Ans: It follows MVC architecture which is used for separating view, controller, model

5. What is main difference between jsp and servlets.

   Ans: Jsp s are mainly used for dynamic presentations where we can write code of design and actual content separately. mainly coding becomes feasible

6. What is difference between procedure and functions.'

    Ans: Functions can return value, procedures cant return value

7. What is jdbc.

    Ans: Connecting to DB from java program requires JDBC
8. What are type of drivers.

     type1,2,3,4

9. What is deployment descriptor?

    Ans: Which contains the information like which file to be used



More in Part I