Graphic by Keith Ohlfs

CS111, Wellesley College, Spring 1998

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November 20, 1998:

There was a bug in the code for the BagelBorder problem in Exam2 so that the Step button did not work for stepping through the code. That is now fixed. There is a new version of the BagelBorder folder in the Exam2 folder. If you downloaded your programs before 2:10 p.m. on Friday, November 20, you should download the BagelBorder folder again to get the corrected version.


November 20, 1998:

Assignment 6 has been graded and you can pick it up outside my office (E106).


November 18, 1998:

Exam 2 is now available.


November 17, 1998:

Solutions for Problem Sets 7 and 8 are now available from the Assignments Page.


November 11, 1998:

You may not use "for" loops or "while" loops for problem set 8.


November 11, 1998:

If you want to take the Winter Session Robotics course, you must sign up during spring pre-registration (i.e. now). Check out the Robot Course Website for more information.


November 10, 1998:

Solutions for Problem Set 6 are now available from the Assignments Page.


October 29, 1998:

If you are working on the extra credit problem for problem set 6 and need a working turtle to start out with, I have uploaded a working version of the Turtles into the ps6_programs files. It is in the folder named "Turtles_ExtraCredit". You may use this to add your code for the penUp and penDown methods.


October 22, 1998:

In problem set 5, the method definitions for the Turtle class refer to the method that sets the color as "setClr(Color c)", but in the TurtleWorld code I gave you, it invokes the method as "setColor(Color.green)". I have changed the problem set to make it consistent--you should name the instance method "setColor(Color c)".


October 22, 1998:

When you are doing the GraphicQuilt problem on Problem set 5, some of the lines in the drawPolygon method from the Graphics class don't get drawn in exactly the right place. This is a bug in the Java library and not necessarily in your code. The quilt may come out looking like some of the black lines are a little too fat, but that is OK. You can correct some of this by not drawing a black outline around each triangle but instead just drawing a black outline around the bounding square of the triangles (using g.drawRect(x,y, width, height)). You will not get a black line along the diagonals of the triangle that way, but this is OK for this problem set.


October 19, 1998:

The reading assignments associated with problem set 5 are: Java First Contact, Review Ch's 7 & 8, Read Ch's 10, 16.4 & 16.5. I left them off the version of the problem set that was posted on Sunday, but they are there now.


October 18, 1998:

The final version of Problem Set 5 is now available.


October 17, 1998:

For those of you who cannot wait to start on the next assignment, a Preliminary version of Problem Set 5 is now available. There will be one more problem added to this assignment on Sunday, October 18.


October 13, 1998:

Solutions to problem set 4 are now available.


October 11, 1998:

The Solutions to problem set 2, and the Solutions to problem set 3 are available.


October 2, 1998:

I forgot to hand out the code for TopDownWorld.java in Section 02 (11:10) today. If you want a copy and don't feel like printing it out yourself I will leave them outside my office (E106).


October 2, 1998:

Problem set 4 is now available.


September 30, 1998:

Problem Set 1 solutions are now available.


September 25, 1998:

Problem Set 3 is now available.


September 18, 1998:

A warning about PC-formatted floppy disks: Although the Macintosh can read PC-formatted disks, Symantec Cafe is confused by them. They will cause you all kinds of problems. If your disk has the letters "PC" on it when you insert it into a macintosh, it is a PC-formatted disk. You should either get a new disk that has a Mac format, or re-format your disk (make sure you save your files somewhere else first, because formatting erases the disk).


September 18, 1998:

Problem Set 2 is now available.


September 13, 1998:

The tutoring schedule is now available. You can see it below on this page. For now we have tutors scheduled for Sunday- Thursday, but due to scheduling conflicts we may have to switch to a Monday - Thursday schedule after a few weeks. There will be no tutor available on Wednesday of this week, but there will be in future weeks. Please start your assignment early so you can make use of the Monday and Tuesday evening tutors if you need them.


September 12, 1998:

If you are having trouble logging into the Server using Fetch or finding Symantec Cafe on your computer, please read the CS111 FAQ page. It has a number of answers to Frequently Asked Questions. You can also find some helpful instructions on the documentation page.


September 11, 1998:

Georgia Dome's web pages have been cleaned up to show the nested structure of the HTML code. Please use "View Page Source" to look at the source code for her lists page and her table page. When writing up your homework assignment, please try to use indentations to show the nesting of the tables and lists like Georgia Dome. Georgia Dome's web site is located at: http://cs111.wellesley.edu/~gdome.


September 11, 1998:

Problem Set 1 is now available.


September 9, 1998: