Written Assignment 2: Documentation

Laboratory 4: Dispatch and Procedures

http://www-cs101.ai.mit.edu/courses/fall99/psets/calculator/

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Written Assignment

• CalculatorState.java

Laboratory

[CHECK-IN, TURN-IN]Write a class that can be used as the startup class for a program.

• SimpleMain.java

[CHECK-IN, TURN-IN] Create a simple self-animating object class.

• SimpleAnimate.java

[CHECK-IN, TURN-IN] What import statements would you need to include to use AnimatorThread and Animate? How could you refer to them without an import statement?

import cs101.lang.Animate;
import cs101.lang.AnimatorThread; 

[TURN-IN] Q. What happens if your main method starts two separate instances of your calculator class?

Two independent calculators will be created.

Finally, here is a working copy of the calculator code:

• ButtonHandler.java

This course is a part of Lynn Andrea Stein's Rethinking CS101 project at the MIT AI Lab and the Department of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology.

Questions or comments:

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  Last modified: Fri Oct 8 10:36:56 1999