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Separation of repeated and specialist code
Control Structures example from a Well House Consultants training course
More on Control Structures [link]

This example is described in the following article(s):
   • Separating your code for easier testing, understanding and re-use; example in Ruby - [link]

Source code: csep Module: R104
#!/usr/bin/env ruby

# Separation of repeated and specialist code

def ask(question="")
        print "#{question}? "
        result = gets.to_i
        return result

def getFeeding(number,length,tutors = 1)
        return length * (number+tutors)

# -------- Above here - first steps to specialist and repeated code

# --------- User code below here -----------

delegates = ask "How many delegates"
print "How many days"
duration = ask

dinners = getFeeding delegates, duration
puts "(default = 1 tutor) You need #{dinners} for #{delegates} over #{duration} days"

dinners = getFeeding delegates, duration, 3
puts "(3 tutors) You need #{dinners} for #{delegates} over #{duration} days"


Running that:

WomanWithCat:kingston grahamellis$ chmod +x csep
WomanWithCat:kingston grahamellis$ ./csep
How many delegates? 5
How many days? 2
(default = 1 tutor) You need 12 for 5 over 2 days
(3 tutors) You need 16 for 5 over 2 days
WomanWithCat:kingston grahamellis$

Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in Ruby
 * Ruby Programming
Also available on on site courses for larger groups

Books covering this topic
Yes. We have over 700 books in our library. Books covering Ruby are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples
This example comes from our "Control Structures" training module. You'll find a description of the topic and some other closely related examples on the "Control Structures" module index page.

Full description of the source code
You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources
• Our Solutions centre provides a number of longer technical articles.
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The Horse's mouth provides a daily tip or thought.
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• All of these resources can be searched through through our search engine
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This is a sample program, class demonstration or answer from a training course. It's main purpose is to provide an after-course service to customers who have attended our public private or on site courses, but the examples are made generally available under conditions described below.

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