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.
Write a ComputePart class and a ComputerKit class(and a cliet class to test them) You should include the following methods: a method returning "expensive" if the total of the price
Explain the Order of Evaluation of Logic Operators ? When Java sees a && operator or a ||, the expression on the left side of the operator is evaluated first. For instance, con
How Polylines draws in java language? Java automatically closes the polygons it draws. That is it draws polygons which look like the one on the right rather than the one on the
In pre-emptive scheduling, the highest priority task implements until it enters the waiting or dead states or a higher priority task comes into existence. In time slicing, a tas
Explain all Java Primitive Data Types? boolean 1-bit. May take on the values true and false only. true and false are describe constants of the language and are not the s
Question 1 Describe the browser components and its features Question 2 Define in detail the building of webpage Question 3 How to use forms? Describe with an example
Defiine the term Object ? Object is a named collection of properties (data, state) & techniques (instructions, behavior). Mainly Objects are key to understanding object-oriente
calculator
we can insert elements at rear and remove at front bt my question is that how we insert at front in circular queue
Need an engineer who has knowledge working on Flex Reporting tool. Who knows how data needs to be taken care of from DB, SharePoint, ERP and then process using logic/intelligence u
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