June 1999
Intermediate to advanced
512 pages
9h 58m
English
Content preview from Programming for the Java™ Virtual MachineBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 1. Introduction to the Java Virtual Machine
Think about the CPU in your computer. No matter what make or model of CPU you own, it serves the same basic functions as any other CPU: it performs arithmetic calculations, controls access to memory, manages the flow of control of programs, and provides a way for programs to use hardware attached to the system.
Even though all CPUs perform essentially the same job, programs designed for one CPU do not work on another. The developers of Java had a simple idea: design an abstraction of a CPU, and implement it for a variety of computers. Once this virtual computer is implemented on a particular system, all programs written for the virtual computer will run on that system. This allows programmers ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.