CSE 143, Winter 2015

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Homework

Output Comparison Tool (check whether your program produces the correct output)
Indenter Tool (fix indentation of your Java code)
Grading Gripe Form (if you don't agree with the way your assignment was graded)
- NOTE: Frivolous regrade requests will not be considered. You must ask your TA about the grading first before using this form and have a valid reason to re-submit.
Need help on homework?
Style guides and tutorials written by TAs

If you are ever unable to access the turn-in you must email your assignment to your TA before the deadline. This way we can upload your homework when the turn-in comes back up with the submission time of when you sent your email. We will not grant extentions because of the turn-in not being available.

Turn in HW8 Homework 8 (Huffman Coding)

Due Thu Mar 12, 11:30pm.

No submissions accepted after Fri Mar 13, 11:30pm.

Specification:

Specification (PDF)

Provided Files:

MakeCode.java, client program for creating code files
Encode.java, client program for encoding a text file using a code file
Decode.java, client program for decoding a compressed file using a code file
BitInputStream.java, for reading input one bit at a time
BitOutputStream.java, for writing output one bit at a time

Test case input files:

Input file	Compressed	Compressed Bytes
example.txt	example.short example.code	example.bytes
short.txt	short.short short.code	short.bytes
hamlet.txt	hamlet.short hamlet.code	hamlet.bytes

a8.zip (all of the above)

Helpful diagrams:
(You can verify the output using the Output Comparison Tool)

Links:

Java API: PriorityQueue, Comparable, InputStream, OutputStream
Wikipedia: Huffman coding

FAQ / Help:

Frequently Asked Questions

Turn in HW6 Homework 6 (Anagrams)

Due Thur February 26, 11:30pm.
No submissions accepted after Sun March 1, 11:30pm.

Specification:	Specification (PDF)
Required Files:	LetterInventory.class, a class to help you count, add, and subtract letters from words and phrases LetterInventory.jar, JAR archive version for Eclipse For those using Eclipse, you should include `LetterInventory.jar` in your project. To add the JAR file to your project, select your project, go to the Projects menu and select Properties, then Java Build Path, then Libraries, then click Add JARs. When you add `LetterInventory.jar` to the build path, it should work. For those using jGRASP or another basic editor, just put `LetterInventory.class` in the same folder as your program. Sometimes this program produces a lot of output. If you run it in jGRASP, it will display just 500 lines of output. In Windows, If you want to see more, go to the Build menu and select the Run in MSDOS Window option. Then when the window pops up, right-click on the title bar of the window, select Properties, and under the Layout tab you should be able to adjust the Screen Buffer Size Height to something higher (like 9999 lines).
Testing Programs and Test Cases:	AnagramMain.java, an interactive test program that lets you generate anagrams dict1.txt \| dict2.txt \| dict3.txt, , input files read by `AnagramMain` sample output 1 \| sample output 2 \| sample output 3 (You can verify the output using the Output Comparison Tool)
Links:	Internet Anagram Server, a cool web site that generates anagrams
FAQ / Help:	Frequently Asked Questions

"I need help with my homework!"

There is probably someone in the IPL today, or maybe Allison or Adam has office hours. If so, go see them.
Check the message board; your question may have been answered there.
Read the relevant chapters and sections of the textbook, or watch the textbook "online portal" videos if you have access to them.
Look at the in-class lecture examples.
Look at this week's section handout problems and their solutions.
Start early! We get swamped the day assignments are due.
Don't panic. You have late days, and even if you run out, it is only -2 points for each day late.

Tutorials and Java style guides written by TAs: