1. Convert a float value to an integer (float to double etc.)
(Hint use wrapper classes ,do not typecast them!).
2. Function overriding & overloading ( Write a set of classes to bring out the difference!)
3. Write a class and override "toString" method in the class
object.(When you write a class "A" does it have any parent? ,
4. What is an abstract class , why it is used ? (Write an abstract and<> try to use it!).
5. Write an interface and try to bring out diff. between abstract class
and an interface! (can i define variables in interfaces?)
6. What is the difference between a Hashtable and Properties? (Write a program as an example!)
7. Write a program to print all elements in a Properties object (Using Enumeration! )
8. Can i remove an element while enumerating through a Properties
object? (If so how? , if not how will i remove a element while
enumerating!). What happens when i remove an element while enumerating!.