September 2021
Beginner
560 pages
12h 4m
English
Content preview from Beginning Programming with Java For Dummies, 6th Edition
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Chapter 6
Using the Building Blocks: Variables, Values, and Types
IN THIS CHAPTER
Declaring variables
Assigning values to variables
Working with numbers
Using Java types
Back in 1946, John von Neumann wrote a groundbreaking paper about the newly emerging technology of computers and computing. Among other things, he established one fundamental fact: For all their complexity, the main business of computers is to move data from one place to another. Take a number — the balance in a person’s bank account. Move this number from the computer’s memory to the computer’s processing unit. Add a few dollars to the balance and then move it back to the computer’s memory. The movement of data … that’s all there is; there ain’t no more.
Good enough! This chapter shows you how to move your data around.
Various Variables and Ways in Which They Vary
Here’s an excerpt from a software company’s website:
SnitSoft recognizes its obligation to the information technology community. For that reason, SnitSoft is making its most popular applications available for a nominal charge. For just $5.95 plus shipping ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.