Notes From Class

Week 1: September 3 and 5, 2003

If you do not have a Glue computer account, please get one. See the FAQ's for step-by-step instructions.

Week 2: September 8, 10, and 12, 2003

Here's a link to the article on smart dust and micro-robots that I mentioned in class.

Week 3: September 15, 17, and 19, 2003

Microsoft has now released new patches that should correct all of the RPC security flaws. Everyone with a Windows NT, 2000, XP, or 2003 Server system should download and install these updated patches, even if you installed the original patch. You can download the new RPC patches from our updated RPC flaw alert page at: http://helpdesk.umd.edu/virus/alerts/rpcflaw.shtml

Week 4: September 22, 24 and 26, 2003

If you need a good terminal emulator for your home PC, go http://www.tucows.com and search on "Term CRT." Take a look at "CRT 4.0.2" -- at home I have an earlier version and I think it's great.

Click here for a good tutorial on UNIX. Many of the UNIX commands that we have covered in class are described on the first page -- "A Sample Login Session." As a starting point, I'd learn how to use:

    Unix Commands
    --------------------------------------------------------------------------------
    1. cd                       <-- change to home directory
    2. cd file1                 <-- change to directory file1
    3. ls and ls -ls and ls -tl <-- list contents of a directory
    4. mkdir file1              <-- make a directory called file1
    5. rmdir file1              <-- remove directory file1
    6. cp file1 file2           <-- copy file1 to file2
    7. mv file1 file2           <-- move file1 to file2
    --------------------------------------------------------------------------------

    Text editor commands
    --------------------------------------------------------------------------------

    1. vi filename              <-- use vi editor to change contents of filename.

    For example, the command sequence:

       prompt >> cd ../pub
       prompt >> vi Welcome.html
       prompt >> vi resume.html
       prompt >> vi australia.html

    moves your shell to the public directory and then systemantically creates the
    HTML files for your home page, resume and trip page. Notice that each file
    name has the "html" extension -- web browsers need this information.

    The class reader contains a list of basic editor commands. 
    --------------------------------------------------------------------------------

Reading.
You should read Chapter 1 of the class text and the "Beginners Guide to HTML," which is in the class reader.
The class reader and "java tutorial handout" are available at the Engineering Copy Center. The combined cost is $15.00.
Homework 1 is available.

Week 5: September 29. October 1 and 3, 2003

If you have downloaded the bulletproof FTP program to your PC at home, you'll need the IP addresses for wam and glue to insert into the site manager (which is on the left-most pulldown menu). The IP addresses are as follows:

    Site                                  IP addresses
    --------------------------------------------------
    wam.umd.edu                           128.8.10.141
                                          128.8.10.142
                                          128.8.10.143

    glue.umd.edu                           128.8.10.68
                                           128.8.10.71
    --------------------------------------------------

The UNIX command to obtain the IP addresses is simply:

    prompt >> nslookup glue.umd.edu

Week 6: October 6, 8, and 10, 2003

Here's a really cool java applet. (Don't link over modem line...may be way too slow.)
Homework 2 is available.

Week 8: October 20, 22, and 24, 2003

Midterm 1. October 24. Closed book. The exam will cover Chapters 1 and 2 of the class text, introduction to object-oriented programming and Java, and anything written on the board during the first seven weeks of the semester.

Week 9: October 27, 29, and 31, 2003

Check out these cool pictures taken by the Hubble spacecraft.

Week 10: November 3, 5, and 7, 2003

Homework 3 is available.

Week 12: November 17, 19, and 21, 2003

Homework 4 is due on November 21. The two files that you will need are Complex.java and Quadratic.java .
After you have downloaded these files to your account, you can compile the program by simply typing:
```
     javac Quadratic.java
```
Then start to fill in the missing details. As with the previous assignments, please hand in a copy of the program source code (i.e., Quadratic.java) and a script file showing I/O for a couple of typical program runs.

Week 13: November 24 and 26, 2003

Midterm 2. November 24. Open book. Java programming.
No class on November 26 (please spend the day travelling to your family instead).

Week 14: December 1, 3 and 5, 2003

Homework 5 is available. I will handout hardcopies of this assignment in class on Wednesday.

Week 15: December 8, 10 and 12, 2003

Hand in homework 5 on December 12. No extensions!

Final Exam: December 17, 8.00am-10.00am.