Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
examples of 2D arrays
What is the Set interface? A Set interface is collection of element that can't be duplicated. Set interface comprise methods inherited from collection. It provides method
Staging areas that have messages those have been sent and are waiting to be read. Note that, contrary to what the name queue suggests, messages don't have to be delivered in the or
Question 1: (a) Describe two reasons driving the termination of processes. (b) Discuss the five main steps the OS would implement once it has decided to create a new proc
Get info from website using javascript Project Description: I need to extract the text from all the available (red, blue) seats of all the events on this site without getting
The method should printout line numbers from 1 to howmany in the previous format -ONLY WHEN is divisble by 3 but is should not oupt more then 3 numbers on the line. input 1 outpu
need java help[
Sequence diagrams are communication diagrams which detail what messages are sent and when. The sequence diagrams are placed according to time. The time performs as you move from to
Explain Java package and methods to use it?
What is the role of hub in networks? The network traffic controller - elements of convential computer networks. Hub is used to link the different computers within the network i
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd