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Learn to Program, 2nd Edition
book

Learn to Program, 2nd Edition

by Chris Pine
March 2009
Intermediate to advanced content levelIntermediate to advanced
194 pages
4h
English
Pragmatic Bookshelf
Content preview from Learn to Program, 2nd Edition

Chapter 2Numbers

Now that you’ve gotten everything ready, it’s time to write your first program! Open your text editor, and type the following:

puts 1+2

Save your program (yep, that’s a complete program!) as calc.rb. Now run your program by typing ruby calc.rb into your command line. It should put a 3 on your screen. See, programming isn’t so hard, now is it?

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Publisher Resources

ISBN: 9781680500172Errata