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.
Question Based on the program fragment below, rewrite the outer for loop using: a. while loop b. repeat..until loop
What is PortableRemoteObject.narrow() method and what is used for? Ans) Java RMI-IIOP gives a mechanism to narrow the the Object you have received from from your
hi,i need whatsapp panel to send unlimitd message. skype : maya123.com email :
1. The purpose of this problem is to practice using ArrayLists.Write a Java client file containing a mainmethod plus other methods as needed to solve the following problem (no clas
search a file with specific extension
In Java everything exists within a class. It describes the behavior of the class and its characteristics. Java applications and applets are built in the class. Rules present for cl
In the airplane program, you may have noticed that the loading of each image appears to be jerky, erratic, or slow, and that the URL for each image flickers in the status bar each
What is the difference between preemptive scheduling and time slicing? Under preemptive scheduling, the highest priority task executes unless it enters the waiting or dead stat
i ne
Ask question #MBookshelves A library decides buy bookshelves to store its books and they need to determine the bookshelves’ heights and widths in order to minimize storage costs. T
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