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.
Alia is appearing for the board exams. In order to qualify for the next class Alia need to get exactly X credits. In current semester Alia has to study N number of subjects, and ev
The problem statement is pretty simple. We need a software implementation of a Point of Sale terminal at a typical store. The users of the system are the cashiers sitting at the sa
Determine about the Wrapper Classes Every primitive data type has a corresponding object (wrapper class). These wrapper classes provides extra functionality (conversion, size c
Application using Swing API
Farm Production System Project Description: I require software that will allow me to input/record the daily production of our farm and allow me to view the data back in the o
Employee get data from console
What limitations are placed on method overriding ?
Session Bean : is a non-persistent object that provides some business logic running on the server. Session beans do not provide system break down. There are two kinds of session b
How many kinds of errors can be found during a program development? List them. 1. Syntax errors 2. Semantic errors 3. Run-time errors
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