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

Quiz for your learning activity, The development of your learning module is...

The development of your learning module is very time consuming, so it is recommended that you begin creating your learning module during this first week. Before you begin, download

Cryptography, Consider the one-time pad encryption scheme to encrypt a 1-bi...

Consider the one-time pad encryption scheme to encrypt a 1-bit message m, and assume m is chosen with uniform distribution from message space M={0,1}. Let E1 be the event "message

Oop, evolution of oop

evolution of oop

Simulated annealing-artificial intelligence, Simulated Annealing One wa...

Simulated Annealing One way to answer the problem of local maxima and related problems like ridges and plateaux in hill climbing is to permit the agent to go downhill to some e

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

Identify important elements of multimedia, Problem 1 Identify important...

Problem 1 Identify important elements of Multimedia and explain with example. Stating important elements of Multimedia with example of each Problem 2 Explain a

Innovation, role of an system analyst as an innovator

role of an system analyst as an innovator

Creating Navigational Buttons in Oracle, Need some help in creating custom ...

Need some help in creating custom forms navigational buttons in oracle 10g

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