Teach Yourself Java in 21 Days is intended for people with at least some basic programmingbackground—which includes people with years of programming experience and people with
only a small amount of experience. If you understand what variables, loops, and functions are,
you’ll be just fine for this book. The sorts of people who might want to read this book include you.
What if you know programming, but you don’t know object-oriented programming? Fear not.
Teach Yourself Java in 21 Days assumes no background in object-oriented design. If you know object-oriented programming, the first couple of days will be easy for you.What if you’re a rank beginner? This book might move a little fast for you. Java is a good language to start with, though, and if you take it slow and work through all the examples, you may still be able to pick up Java and start creating your own applets.
