This subchapter is a stub section. It will be filled in with instructional material later. For now it serves the purpose of a place holder for the order of instruction.
Professors are invited to give feedback on both the proposed contents and the propsed order of this text book. Send commentary to Milo, PO Box 1361, Tustin, California, 92781, USA.
enumerated ordinal types
This subchapter looks at enumerated ordinal types (called user-defined ordinal types in Pascal).
The enumerated types are used for countable items, such as the cards in a deck of ordinary playing cards.
Many modern programming languages have an enumerated value data type. If not, a sequence of integers can be used instead. The enumerated data type simply makes it easier to keep track of the meaning of the integer values.
The following material is from the unclassified Computer Programming Manual for the JOVIAL (J73) Language, RADC-TR-81-143, Final Technical Report of June 1981.
The kinds of values provided by JOVIAL reflect the applications of the language; they are oriented toward engineering and contrl programming rather than, for example, commercial and business programming. The JOVIAL values are: 6. Status values, which are special words. They are used to describe the status of the system, or a particular part of the system, at any given time. For example, status values of "V(OK)", "V(WEAK)", or "V(BAD)" can be used to indicate the condition of a power cell.
Coding example: I am making heavily documented and explained open source code for a method to play music for free almost any song, no subscription fees, no download costs, no advertisements, all completely legal. This is done by building a front-end to YouTube (which checks the copyright permissions for you).
Work on this project is very slow because I am homeless. I am available for work if someone can provide an indoor place to work in Costa Mesa, California, electricity, internet connections, a flat raised working surface (such as a table or desk), a sitting device (such as a chair or stool), and a fully functional reasonably modern used computer. Im already homeless, so you dont need to pay me (and I understand how much business people hate the minimum wage law). Just give me a chance to work.
Building a free downloadable text book on computer programming for university, college, community college, and high school classes in computer programming.
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send donations to: Milo
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