Poset , computer science, Basic Computer Science

Assignment Help:
1. (40 points) Add a course drop method to the system that you implemented in Problem Set
1. Modularize your new implementation properly. For any new methods that you introduce:
1. Write a speci cation.
2. Write an implementation sketch.
3. Annotate the code.
2. (80 points) A partially ordered set (PoSet) is a pair (S; R) where S is a set and R  S  S
is a binary relation over S such that:
 R is re
exive: 8 x 2 S : xRx
 R is antisymmettric: 8 x; y 2 S : xRy ^ yRx ) x = y
 R is transitive: 8 x; y; z 2 S : xRy ^ yRz ) xRz
R is called a partial order over S.
Implement PoSet as an abstract data type. Your implementation must provide the following
operations:
 Create an empty partially ordered set (S; R), i.e., S = ;, R = ;.
 Add an element x to S: S := S [ fxg, with R remaining unchanged.
 Add an ordering between two existing elements x; y 2 S: R := R [ (x; y), provided that
this does not violate the partial order conditions.
 Answer a membership query x 2 S.
 Answer an ordering query (x; y) 2 R.
You may use any class in the Java collections framework.
Your solution must include the following:
1. An abstraction function and representation invariant for the class that implements PoSet.
2. Overview statements for every class.
3. Speci cation, implementation sketch, and annotation for all methods, with the exception
of very simple and obvious methods such as one line getter methods.

Related Discussions:- Poset , computer science

Graphical user interface and arrays, In this program, you are going to writ...

In this program, you are going to write a program for playing the game of Hangman. In this game, the computer will pick a word and display a sequence of blanks to be filled in; one

An e-mail account, An E-Mail Account: Inbox: Inbox is the main folder ...

An E-Mail Account: Inbox: Inbox is the main folder in your email account. It contains all the e-mails that have arrived in your e-mail account. You can click on inbox to see t

Definition of resource sharing , Resource sharing is a concept which has de...

Resource sharing is a concept which has developed to contain many cooperative activities among libraries and other stakeholders. Interlibrary loan continues to be the basis of reso

What do you mean by an interrupt, Question 1 . Explain briefly the function...

Question 1 . Explain briefly the functional units of a computer Question 2 . What do you mean by an interrupt Question 3 . Explain fetching a word from the memory

Definition of User-Level Thread?, User-level threads apply in user-level li...

User-level threads apply in user-level libraries, before via systems calls, so thread switching does not require to call operating system and to cause interrupt to the kernel. Actu

Uniform path cost search-artificial intelligence, Uniform Path Cost Search-...

Uniform Path Cost Search-Artificial intelligence A breadth first search will search the solution with the shortest path length from the first state to the goal state. Though, t

Backup software, Backup software: A number of Backup software are avai...

Backup software: A number of Backup software are available that assist you in taking backup of your important data on the computer. Selecting between various back-up software

DBMS, what is the meaning of data definition

what is the meaning of data definition

Process control management, Process Control Management:   A  process  ...

Process Control Management:   A  process  is an executing program. It is considered the standard unit of work within a computer system. Every executing program is treated as a

Port in a computer, what is the need of a port in a computer?

what is the need of a port in a computer?

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