Functional Problem Solving (CSC 151 2014F) : Outlines

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Related Courses: [Davis (2013F)] [Rebelsky (2014S)] [Weinman (2014F)]

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Outline 55: Objects in Scheme, Continued

Held: Wednesday, 10 December 2014

Back to Outline 54 - Pause for Breath (aka 'The Network is Down'). On to Outline 56 - Wrapup.

Summary

We continue our exploration of objects in Scheme.

Related Pages

Overview

Objects, revisited.
Building a four-way switch.
Reflection.

Administrivia

Continue yesterday's partner!
One more day after today
- Today: Fun Forms; Objects, concluded
- Friday: Debriefing resumes; Evaluations; Some grades returned
- ATTENDANCE EXPECTED!
There's a Sam review session on Thursday. There's an Ajuna review session on Thursday. But there's no Alex review session tonight.
If there are no other questions, I will discuss continuations on Thursday.

Upcoming Work

Exam 4 due TONIGHT at 10:30 p.m. in electronic form!
- Printed version due in class tomorrow.
- Epilogue due tonight, too.
No more readings!
No more lab writeups!

Extra Credit Opportunities

Academic

Inside Grinnell Thursday the 11th at noon in JRC 101: Grinnell's Endowment: What Can and Can't it Do?

Peer Support

Karan's radio show 11pm Thursday nights on KDIC
Evan's radio show 5pm Friday nights on KDIC
Donna's radio show Sunday midnight on KDIC
Jazz Band, Dec. 13, 8pm Gardner

Additional Events

Looking ahead: We do not have classes on MLK day, but we do have campus events. You should consider participating in those events.

Objects: Key Ideas

Mutable, encapsulated data.
Represented as functions.
Functions take the action as their input.
Data is represented as a local vector.
No one else can access the vector.

Writing the Four-Way Switch

Feel free to ignore what I'm saying and just work on the lab.

What messages?
How should we represent the state?
How should we change the state?

Lab

If you finish early, do the extras.
If you finish the extras, feel free to surf the Web.

Reflection

What was the most interesting part of the objects exploration?
Should we do this earlier in the semester?
What was the most difficult part?