Preface: Computer Language iii
Although references will often be made to language features in other languages
such as C++ and Java, these are not intended to be insider comments, but instead
to help all programmers put C# in perspective with those languages. All good
programmers are polyglots and the greatest value proposition of the .NET
Framework is that it supports multiple languages.
Learning C#
Picasso is reputed to have said “Computers are worthless; they can only give you
answers.” The same could be said of books. No book can teach you C#
programming, because programming is a creative process. The only way to learn
any language is to use it in a variety of situations, to gradually internalize it as you
solve increasingly difficult problems with it. To learn C#, you must start
programming in C#.
This is not to say that the best way to learn C# is on the job. For one thing,
companies don’t typically allow programmers to work in a language in which they
have no experience. More significantly, your job is to deliver value to your
customers, not to learn the nuances of C# and the .NET Framework.
For many people, seminars are the best environment for rapid learning. There
are many reasons for this: the interactions with the teachers and fellow students,
the explicit dedication of several days to achieving specific educational goals, or
just being out of the office and away from email and meetings. One of the authors
(Bruce) has been teaching object-oriented programming in multiday seminars
since 1989. The structure of this book is highly influenced by those experiences.
As the chair of the C++ and Java tracks at the Software Development conference,
Bruce discovered that speakers tended to give the typical audience too many
topics at once. Sometimes this was because they were striving to present an
example that was “realistic” and therefore unfocused. Other times it stemmed
from a fear of underserving the more experienced in the audience. Over the years,
Bruce developed many presentations, iteratively developing a scope and sequence
for teaching object-oriented programming in a language-specific manner. This
curriculum has been the core of many products: books, CD-ROMs, and seminars
for a variety of languages including C++, Java, and, now, C#.
There are three notable characteristics of this curriculum:
♦ It has a broad scope, from fundamental topics such as “how does one
compile a program?” to professional challenges such as thread-safe
design
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