CSE 143X, Autumn 2025

Homework

Output Comparison Tool (check whether your program produces the correct output)
Indenter Tool (fix indentation of your Java code)
A 143-specific style guide developed by TAs
Unofficial commenting guide, developed by TAs
General style deductions

Turn in HW8 Homework 8 (Huffman)

Due Friday December 5, 11:00pm.

No submissions accepted after Monday December 8, 11:00pm.

Specification:	Specification
Supporting Files:	MakeCode.java Encode.java Decode.java BitInputStream.java BitOutputStream.java hamlet.txt hamlet.code hamlet.short short.txt short.code short.short ass8.zip	(client program for part 1) (client program for part 2) (client program for part 3) (supporting code for part 2) (supporting code for part 2) (sample file) (code for sample file) (compressed sample file) (sample file) (code for sample file) (compressed sample file) all of the above
Diagrams :	short tree diagram hamlet tree diagram
Links:	PriorityQueue API documentation Wikipedia: Huffman Wikipedia: UTF-8 (most commonly used text format today)

Turn in HW8 Bonus Homework 8 BONUS (HuffmanTree2)

Due Monday December 8, 11:00pm.

No late submissions accepted

Specification:	Specification
Supporting Files :	ass8-bonus.zip

Turn in HW7 Homework 7 (AnagramSolver)

Due Friday November 21, 11:00pm.
No submissions accepted after Monday November 24, 11:00pm.

Specification:

Specification

Supporting Files:

dict0.txt (4-word) dict1.txt (short) dict2.txt (medium) dict3.txt (long) dict4.txt (long, alternate order)
AnagramMain.java	Client Program
LetterInventory.class	(compiled letter inventory)
LetterInventory.jar	(Eclipse users only)
(all supporting files contained in ass7.zip)

Sample logs :

Sample trace :

Links:

other dictionaries

LetterInventory description

Turn in HW4 Bonus Homework 5 Bonus (Hangman Bonus)

Due Monday November 17, 11:00pm.
No late submissions accepted.

Specification:	Specification
Links:	Java: Collections.unmodifiableSet

Turn in HW6 Homework 6 (GrammarSolver)

Due Friday November 7, 11:00pm.
No submissions accepted after Monday November 10, 11:00pm.

Specification:

Specification

Supporting Files:

GrammarMain.java	(client program)
sentence.txt	(English grammar)
sentence2.txt	(expression grammar)
TestE.java	(program to test results from sentence2.txt)
(all supporting files contained in ass6.zip)

Links:

Regular Expressions

quickstart guide

BNF (Backus-Naur Form)

Turn in HW5 Homework 5 (Evil Hangman)

Due Friday October 31, 11:00pm.
No submissions accepted after Monday November 3, 11:00pm.

Specification:

Supporting Files:

HangmanMain.java	(a client program)
dictionary.txt	(large dictionary)
dictionary2.txt	(short dictionary for testing)
(all supporting files contained in ass5.zip)

Sample Logs:

file=dictionary2.txt, SHOW_COUNT = true: log1 log2 log3
file=dictionary.txt, SHOW_COUNT = true: log4
file=dictionary.txt, SHOW_COUNT = false: log5 log6 log7 log8 log9

Links:

Wikipedia: Hangman
Java API Specification: Collection
Java API Specification: Set
Java API Specification: Map

Turn in HW4 Homework 4 (AssassinManager)

Due Friday October 24, 11:00pm.
No submissions accepted after Monday October 27, 11:00pm.

Specification:	Specification
Supporting Files:	AssassinMain.java AssassinNode.java names1.txt names2.txt names3.txt names.txt (all supporting files contained in ass4.zip)
Sample logs :	hw4-log1.txt hw4-log2.txt hw4-log3.txt hw4-log4.txt
Links:	Wikipedia: Assassin (game)

Turn in HW3 Homework 3 (Guitar Hero)

Due Friday October 17, 11:00pm.
No submissions accepted after Monday October 20, 11:00pm.

Specification:

Specification

Supporting files :

Guitar.java (Guitar interface)
GuitarHero.java (main program)
GuitarLite.java (simple guitar implementation)
Guitar37.java (starter file)
StdAudio.java (support library)
StdDraw.java (support library)
TestString.java and string.txt (testing program for GuitarString)
test37.zip (files to test Guitar37; include your Guitar37 class and compile and run Test37, check against output comparison tool)
PlayThatTune.java (program to record Guitar37)
RecordThatTune.java (program to record Guitar37)
play.zip (directory of tunes for PlayThatTune)
ass3.zip (contains all supporting files)

Links:

additional information about StdAudio

an explanation of the physics

Turn in HW2 Homework 2 (Letter Inventory)

Due Friday October 10, 11:00pm.
No submissions accepted after Monday October 13, 11:00pm.

Specification:	Specification
Testing Programs:	Test1.java and test1.txt Test2.java and test2.txt Test3.java and test3.txt test1.zip (contains all test files)

Turn in HW1 Critters here Homework 1 (Critters)

Due Friday, October 3, 11:00pm. No submissions accepted after Monday October 6, 11:00pm.

Specification:	Specification
Supporting Files:	Critter.java CritterFrame.java CritterInfo.java CritterMain.java CritterModel.java CritterPanel.java FlyTrap.java Food.java (all supporting files contained in ass1.zip)

CSE 143X: Computer Programming II/III (accelerated), Autumn 2025

Instructor: Stuart Reges (reges@cs.washington.edu), CSE2 305: Tue 12-1, 2-3

CSE 143X

Coursework

Getting Help

Check Scores

Other

Homework

Turn in HW8 Homework 8 (Huffman)

Due Friday December 5, 11:00pm.

Turn in HW8 Bonus Homework 8 BONUS (HuffmanTree2)

Due Monday December 8, 11:00pm.

Turn in HW7 Homework 7 (AnagramSolver)

Due Friday November 21, 11:00pm.
No submissions accepted after Monday November 24, 11:00pm.

Turn in HW4 Bonus Homework 5 Bonus (Hangman Bonus)

Due Monday November 17, 11:00pm.
No late submissions accepted.

Turn in HW6 Homework 6 (GrammarSolver)

Due Friday November 7, 11:00pm.
No submissions accepted after Monday November 10, 11:00pm.

Turn in HW5 Homework 5 (Evil Hangman)

Due Friday October 31, 11:00pm.
No submissions accepted after Monday November 3, 11:00pm.

Turn in HW4 Homework 4 (AssassinManager)

Due Friday October 24, 11:00pm.
No submissions accepted after Monday October 27, 11:00pm.

Turn in HW3 Homework 3 (Guitar Hero)

Due Friday October 17, 11:00pm.
No submissions accepted after Monday October 20, 11:00pm.

Turn in HW2 Homework 2 (Letter Inventory)

Due Friday October 10, 11:00pm.
No submissions accepted after Monday October 13, 11:00pm.

Turn in HW1 Critters here Homework 1 (Critters)

Due Friday, October 3, 11:00pm. No submissions accepted after Monday October 6, 11:00pm.

CSE 143X: Computer Programming II/III (accelerated), Autumn 2025

Instructor: Stuart Reges (reges@cs.washington.edu), CSE2 305: Tue 12-1, 2-3

CSE 143X

Coursework

Getting Help

Check Scores

Other

Homework

Turn in HW8 Homework 8 (Huffman)

Due Friday December 5, 11:00pm.

Turn in HW8 Bonus Homework 8 BONUS (HuffmanTree2)

Due Monday December 8, 11:00pm.

Turn in HW7 Homework 7 (AnagramSolver)

Due Friday November 21, 11:00pm. No submissions accepted after Monday November 24, 11:00pm.

Turn in HW4 Bonus Homework 5 Bonus (Hangman Bonus)

Due Monday November 17, 11:00pm. No late submissions accepted.

Turn in HW6 Homework 6 (GrammarSolver)

Due Friday November 7, 11:00pm. No submissions accepted after Monday November 10, 11:00pm.

Turn in HW5 Homework 5 (Evil Hangman)

Due Friday October 31, 11:00pm. No submissions accepted after Monday November 3, 11:00pm.

Turn in HW4 Homework 4 (AssassinManager)

Due Friday October 24, 11:00pm. No submissions accepted after Monday October 27, 11:00pm.

Turn in HW3 Homework 3 (Guitar Hero)

Due Friday October 17, 11:00pm. No submissions accepted after Monday October 20, 11:00pm.

Turn in HW2 Homework 2 (Letter Inventory)

Due Friday October 10, 11:00pm. No submissions accepted after Monday October 13, 11:00pm.

Turn in HW1 Critters here Homework 1 (Critters)

Due Friday, October 3, 11:00pm. No submissions accepted after Monday October 6, 11:00pm.

Due Friday November 21, 11:00pm.
No submissions accepted after Monday November 24, 11:00pm.

Due Monday November 17, 11:00pm.
No late submissions accepted.

Due Friday November 7, 11:00pm.
No submissions accepted after Monday November 10, 11:00pm.

Due Friday October 31, 11:00pm.
No submissions accepted after Monday November 3, 11:00pm.

Due Friday October 24, 11:00pm.
No submissions accepted after Monday October 27, 11:00pm.

Due Friday October 17, 11:00pm.
No submissions accepted after Monday October 20, 11:00pm.

Due Friday October 10, 11:00pm.
No submissions accepted after Monday October 13, 11:00pm.