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Question:
(a) Differentiate between the following terms using suitable examples of your own:-
(i) inheritance v/s composition (ii) subclass v/s superclass (iii) software re-usability v/s data encapsulation
(b) Discuss why casting a superclass reference to a subclass reference is potentially dangerous. Use appropriate examples to support your answer.
(c) (i) Explain why Java does not support multiple inheritance.
(ii) What feature of Java helps to simulate multiple inheritance. Use a suitable example of your own to illustrate your answer.
(d) (i) Write down an inheritance hierarchy for classes Quadrilateral, Trapezoid, Parallelogram, Rectangle, Square. Use Quadrilateral as the superclass of the hierarchy.
(ii) Identify a maximum number of subclass levels in your hierarchy. (iii) The private data members of Quadrilateral should include the (x,y) coordinate pairs for the four endpoints of the Quadrilateral.
(iv) Write down a driver program that instantiates and displays objects of each of these classes.
Prompt the user for an int between an upper and lower boundary. Reuse the validateInput() method from project 2 to validate if the input is in bounds. If it is not, print an error
iiiiii
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In this assignment you work on a set of tasks with the classes Currency, Money and Bank. Money and Currency You have been given a template for the Currency and Money classes (Lab1.
two different object may have chance to have same behavier but property must be different why?
JDBC Assignment Banking Database System: BankCustomer CUST_ID CUST_NAME ADDRESS ACC_TYPE CUST_ID
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