Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

What did the ape think of the grape's house answers

21/10/2021 Client: muhammad11 Deadline: 2 Day

Java Algorithem

Implementation of a Spellchecker using Hash Tables

Pak Ching Li

Due: Friday March 2nd, 2018 - 11:59 PM

Programming Standards

When writing code for this course, follow the programming standards, available on this course’s website on UMLearn. Failure to do so will result in the loss of marks.

Objective

The objective of this assignment is to implement a spell checking program using hash tables and separate chaining.

Your Program

General Overview: Most spell checkers use hashing to determine if a given word in a document is correct (that’s why they can check your spelling as you type).

The Dictionary: First, you must set up a dictionary in which to look up words. When your program starts, use either JFileChooser or JOptionPane.showInputDialog or a Scanner object to allow the user to specify the dictionary file to load. (The dictionary file is words.txt, which can be found in the Content Browser on D2L with this assignment in an Assignment 3 folder under Assignments.) Read in the dictionary file. There is one word per line. Insert each word in the dictionary into a Table ADT.

Implement the Table ADT as follows:

• Use a hash table of size 94321 (a prime number that gives a load factor of about 0.5).

• Use separate chaining (in which each table slot is a (singly) linked list of nodes) to resolve collisions. Node words may be inserted at the front of the appropriate linked list.

• Use the polynomial hashing algorithm discussed in class to hash each word — use Horner’s method to compute the polynomial hash code and take the result of each operation mod the table size to avoid integer overflow. In Horner’s method, use a = 13 when evaluating your polynomial p(a).

Checking the spelling in a file: After you have read in the dictionary file and stored them in a table, you must check the spelling of all words in another file, a document file.

Again, use either JFileChooser or JOptionPane.showInputDialog or a Scanner object to allow the user to specify the document file to load. The file book.txt is provided for testing. This file contains multiple words per line. You are encourage to test against other document files.

For each word in the document file, perform a Table search to see if the word is in the dictionary. If a word isn’t present in the Table, then it is a spelling error (that is, a mis-spelled word). It should be pointed out that words.txt is not a very complete dictionary and so some words that are spelled correctly will be flagged as erroneous.

1

Once your program has process the document file, indicate the spelling errors by printing each mis-spelled word once. With each word, include the line numbers on which the word appears (in the order in which you found them). Note that a word can be mis-spelled multiple times on a single line. So an mis-spelled word might generate the following line in the output:

Invalid word "Michiko" found on lines 1 59 21 21

To keep track of mis-spelled words and on which lines they occur, use another hash table, known as the mis-spelled word table, to keep track of the mis-spelled words (and where they were found in the document):

• This hash table should have size 2797.

• An mis-spelled word will only be added to the mis-spelled word table if the word is not already in the mis-spelled word table. Thus, you must do a search for the word, and only add the word to the mis-spelled word table if it is not found.

• Each element of the mis-spelled word table will contain two things: a word and a queue of the line numbers on which this mis-spelled word was found in the document file. The queue of line numbers is an ordinary queue: line numbers are enqueued at the end of the queue. You may implement this as a linked list (of your choice).

• If a mis-spelled word is already in the table, simply add the new line number to the end of queue of line numbers for that word.

After the document file is completely processed, traverse the mis-spelled word table. For each mis-spelled word found in the table, print out both the word and the numbers of all lines on which it appeared (removing the line numbers one-by-one from the line number queue). Note that the output will likely be in alphabetic order, which is perfectly okay.

Suggestions

• The document file that you will read has punctuation that must be handled. You must ensure that no word is seen as error because it had punctuation attached to it. Note that an apostrophe is a valid part of a word and should not be considered punctuation. Punctuations other than apostrophe will split a word into two. Eg) Input abc-def becomes two words abc and def.

Suggestion: If String inLine is an input line from the document file, then the command nLine.trim().split( "[^a-zA-Z']+" ) splits the line into tokens using one or more characters that are NOT letters or an apostrophe as the splitting pattern (“^” means “not”). Try this on some sample strings to see what it does.

• Hashing "A" and "a" produces different values, but you would not expect them to be different words in a dictionary. To manage this difference, convert all text to all lower case when processing (this comment also applies to the dictionary words). This conversion simplifies things and makes the spell checker more reliable.

Suggestion: The helpful String method toLowerCase() will do the job for you and a good idea to do this as soon as an input is read in.

• You must organize you program into appropriate classes. You should have a class representing your hash table, a class representing a the data to be stored in the hash table, a class representing a queue, a class representing the data to be stored in your queue, and a main application class. You may have other classes if you need them.

2

• Do not have more than one hash table class. There should be one hash table class, that can be used for both the dictionary words and the mis-spelled words (of course you’ll need two hash table objects). The key is to make the class that holds your hash table data data flexible enough to handle both situations.

• Your data structures (hash tables, queues, etc.) should NOT contain any program logic specific for solving this program. Instead, they just should implement the standard features as discussed in class.

• Test your program using a small dictionary and document file first. Using small files along with small hash table sizes (say size=5) will allow you to quickly check if your code is working or not. A small dictionary file test-dict.txt is provided, along with a small document file test-file.txt.

Sample output: Your output should take the following form (note that this is not the output for the given data files):

There are a total of 10 invalid words:

Invalid "cant" found on lines 1

Invalid "pewter" found on lines 1

Invalid "turbine" found on lines 1

Invalid word "Michiko" found on lines 1 59 21 21

Invalid word "fortune" found on lines 1

Invalid word "fashionable" found on lines 3 5 9 11 11 13

Invalid word "Popcorn" found on lines 5 90 104

Invalid word "10" found on lines 7 139

Invalid word "sensei" found on lines 7 139

Invalid word "haberdasher" found on lines 9 13 13

Hand-in Instructions

Go to COMP2140 in UMLearn, then click “Dropbox” under “Assessments” at the top. You will find a dropbox folder called “Assignment 3”. Click the link and follow the instructions. Please note the following:

• Submit ONE .java file. The .java file must contain all the source code. The .java file must be named A3.java (e.g., A3Daimon1234567.java).

• Please do not submit anything else.

• We only accept homework submissions via UMLearn. Please DO NOT try to email your homework to the instructor or TAs.

• We reserve the right to refuse to grade the homework or to deduct marks if these instructions are not followed.

Honesty Declaration

Your Assignment 3 (and any other work in this course) may not be marked unless you have already handed in the blanket honesty declaration covering all of your term work.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Finance Homework Help
George M.
Isabella K.
Writing Factory
Math Exam Success
Math Guru
Writer Writer Name Offer Chat
Finance Homework Help

ONLINE

Finance Homework Help

I have read your project details and I can provide you QUALITY WORK within your given timeline and budget.

$17 Chat With Writer
George M.

ONLINE

George M.

I have written research reports, assignments, thesis, research proposals, and dissertations for different level students and on different subjects.

$48 Chat With Writer
Isabella K.

ONLINE

Isabella K.

As an experienced writer, I have extensive experience in business writing, report writing, business profile writing, writing business reports and business plans for my clients.

$28 Chat With Writer
Writing Factory

ONLINE

Writing Factory

After reading your project details, I feel myself as the best option for you to fulfill this project with 100 percent perfection.

$18 Chat With Writer
Math Exam Success

ONLINE

Math Exam Success

I am a professional and experienced writer and I have written research reports, proposals, essays, thesis and dissertations on a variety of topics.

$21 Chat With Writer
Math Guru

ONLINE

Math Guru

As an experienced writer, I have extensive experience in business writing, report writing, business profile writing, writing business reports and business plans for my clients.

$39 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Celia a slave full book - Is tara bethan married - The smart balance wheel - Stakeholder theory of corporate governance ppt - Igcse french speaking topics - Ethical teachings in the ten commandments - Lpi online 360 assessment - Departure procedure in front office - Personal exam timetable uq - Recommend an Ethics Plan for Your Organization - Capsim drift rates - Reebok nfl replica jersey case study solution - Animal walks for children - Identify characteristics associated with successful human services programs - MA DIS - 8 - BIM - Slow and slimy mover crossword - Course Paper 1: Technology and Citizen Participation - St mark's northbridge kindergarten - Hand gestures in art - How to read flying star chart - Co2 enters the inner spaces of the leaf through the - Johnny rockabilly has just finished recording - History of philippine literature timeline pdf - Operations management assignment 1 - John wilkinson primary school - Hum 100 worksheet cultures and artifacts - Project 5 - Barreling effect in compression testing - Heart foundation cookbook australia - Helen keller documentary youtube - Bromination of acetone rate law - Stigmata of liver disease - Shadow health chest pain quizlet - Where does simon go at the end of chapter 3 - I need 650 words critical review of an article - Capital budgeting mini case solution - 2 responses - Values statement - Discussion - Drama report card - Product strategy for international marketing - Ndis participant portal sign in - Ebscohost multi database search - 495 week 7 - How to calculate mechanical advantage of a wedge - Sace research project 10 pages examples - English verb tenses table pdf - Yellow ribbon fund jobs university of leicester thesis - Birthday cake method for prime factorization - Marketing communications role play - Adafruit pwm servo driver tutorial - DNA - Air force master training plan example - S&s storm chasers red lion pa - Weighted average number of shares outstanding - Victimology - Beef cattle quiz questions - American government - Hardcore pawn big bet over melted gold - Adam smith's concept of the invisible hand refers to - Art prodigy poses ethical nightmare for parents - Cus no3 cu2+ s no - Reduction of camphor using sodium borohydride - Whole foods market organizational chart - The velocity profile in fully developed laminar flow - Case studies in abnormal psychology gorenstein and comer pdf - Course Project Milestone: Annotated Bibliography- APA FORMAT (4-7 pages) - Virginia Bog Eared Bat - Biology Final - Portfolio I - Great gatsby citation mla format - Why schools should allow phones - Forrest gump hippie movement - Mcdonalds french fries contain beef - Ffa code of conduct - Digi one ia default ip address - Dhashvanth name meaning in tamil - Classical Music Essay - The great depression by mike kubic - Ch3i polar or nonpolar - Rmit public transport concession - Ethical and Lega; Aspects of Nursing Practice DQ 1 week 1 - Potentiometer measurement of resistance experiment - Ventura rack fitment chart - Arduino measure elapsed time - Mensa new zealand incorporated score - Convert 27 months to fortnights - Hodder education workbook answers - De beers diamond dilemma swot analysis - 10 page essay compare and contrast Missouri and us constitution - Week 3 Discussion - Economics Research and Essay 250 words - Describe your classroom management philosophy - Charles lackey operates a bakery in idaho quizlet - EMAN - Digital electronics principles and integrated circuits - Ar 850 5 us military equipment markings - Math at the mall 2 - Assignment - Strengths and weaknesses of code of ethics