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Learning Processing, 2nd Edition
book

Learning Processing, 2nd Edition

by Daniel Shiffman
September 2015
Beginner content levelBeginner
564 pages
13h 28m
English
Morgan Kaufmann
Content preview from Learning Processing, 2nd Edition
4

Variables

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

—Carl Sagan

Believing oneself to be perfect is often the sign of a delusional mind.

—Lieutenant Commander Data

In this chapter:

 Variables: What are they?

 Declaring and initializing variables

 Common uses for variables

 Variables you get “for free” in Processing (a.k.a. built-in variables)

 Using random values for variables

4-1 What is a variable?

I admit it. When I teach programming, I launch into a diatribe of analogies in an attempt to explain the concept of a variable in an intuitive manner. On any given day, I might say, “A variable is like a bucket.” You put something ...

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Publisher Resources

ISBN: 9780123947925