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

Java pass arguments by value or reference, Does Java pass arguments by valu...

Does Java pass arguments by value or reference? Ans) Pass by value. 1. When passing primitives, it going a copy of the variable to the method. Any change made in the method d

What is testing for equality in java, What is Testing for Equality in java?...

What is Testing for Equality in java? Testing for equality is a little trickier. You would expect to test if two numbers are equal through using the = sign. However the = sign

Describe methods of basic applet life cycle, Describe methods of Basic Appl...

Describe methods of Basic Applet Life Cycle ? All applets have the subsequent four methods: public void init(); public void start(); public void stop(); public void destroy();

Liferay especialist and java programmer, Liferay Especialist and Java Progr...

Liferay Especialist and Java Programmer Project Description: We require to make a full functional Portal with online tools. JSF, Java, Portlets, Skills required: CSS

Explain data security management issue, Explain DATA SECURITY Management is...

Explain DATA SECURITY Management issue? All data in the system is extremely critical to its operation, the security of the customer's personal data is most important. Most of t

Explain the term- comparing strings, Explain the term- Comparing Strings ...

Explain the term- Comparing Strings For comparing Strings never use == operator, use equals method of String class. - == operator compares addresses (shallow comparison) whi

Explain how many ways businesses monitor their employees, Explain how many ...

Explain how many ways businesses monitor their employees? • Systems are available which monitor almost every key stroke that an employee forms on a computer. • Systems are avai

Arrays, 1. Arrays and working with arrays

1. Arrays and working with arrays

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