Scheme Programming Examples

• how-many.scm, an example of recursive programming on lists
• locals.scm, an example of local definitions
• functional_abstraction.scm, a bunch of examples of treating functions as "first-class objects"; that is, you can do pretty much the same things with functions (pass them as parameters, return them as results, store them in variables, define them locally, construct them on the fly without names) that you can do with numbers or strings
• For consistency with the C, C++, and Java examples, hello.scm defines a function "voting-message" that takes in a string representing an age and returns an appropriate message about whether the person can vote.
• For consistency with the Java examples, hello-gui.scm does the same thing in a GUI.