Explain why java does not support multiple inheritance, JAVA Programming

Assignment Help:

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.


Related Discussions:- Explain why java does not support multiple inheritance

Area Under Curve, #include float start_point, /* GLOB...

#include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int numtraps; main( ) { void input( void );

Calculate the kilometer within an hour, Calculate the kilometer within an h...

Calculate the kilometer within an hour? class Car { String licensePlate = ""; // e.g. "New York 543 A23" double speed = 0.0; // in kilometers per hour doubl

It, Implement a program that can compute your taxes (assume year 2012, as- ...

Implement a program that can compute your taxes (assume year 2012, as- sume a form 1040EZ). The form should ask for your ling status (single, married), income, deductions and cred

Describe the concept of encapsulation, Describe the concept of Encapsulatio...

Describe the concept of Encapsulation  Encapsulation is a technique which is used for hiding properties and behaviors of an object and allowing outside access only as appropria

Program design, GOALS 1.   Use abstract classes in the correct program...

GOALS 1.   Use abstract classes in the correct programming context. 2.   Evaluate and use a variety of data structures. 3.   Design, evaluate and implement efficient alg

Spring MVC Controllers, I want to upload an item object with it''s image is...

I want to upload an item object with it''s image is it possible that i pass a complete object of my Item along with it''s image from my Controller if yes then how may i Do it? an

What does tcp/ip stand for, What does TCP/IP stand for? TCP/IP is a Pro...

What does TCP/IP stand for? TCP/IP is a Protocol type basically it is known by Transmission Control Protocol/Internet Protocol

What are the different scopes for java variables, What are the different sc...

What are the different scopes for Java variables? The scope of a Java variable is explained by the context in which the variable is declared. Therefore a java variable can have

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd