Book Image

Java Projects - Second Edition

By : Peter Verhas
Book Image

Java Projects - Second Edition

By: Peter Verhas

Overview of this book

Java is one of the most commonly used software languages by programmers and developers. In this book, you’ll learn the new features of Java 11 quickly and experience a simple and powerful approach to software development. You’ll see how to use the Java runtime tools, understand the Java environment, and create a simple namesorting Java application. Further on, you'll learn about advanced technologies that Java delivers, such as web programming and parallel computing, and will develop a mastermind game. Moving on, we provide more simple examples, to build a foundation before diving into some complex data structure problems that will solidify your Java 11 skills. With a special focus on the features of new projects: Project Valhalla, Project Panama, Project Amber, and Project Loom, this book will help you get employed as a top-notch Java developer. By the end of the book, you’ll have a firm foundation to continue your journey toward becoming a professional Java developer.
Table of Contents (12 chapters)

The CPU heartbeat

These days, CPUs run on 2 to 4 GHz frequency processors. It means that a processor gets 2 to 4 times 109 clock signals to do something every second. A processor cannot perform any atomic operation faster than this, and also there is no reason to create a clock that is faster than what a processor can follow. It means that a CPU performs a simple operation, such as incrementing a register, in half or quarter of a nanosecond. This is the heartbeat of the processor, and if we think of the bureaucrat as humans, and who they are, then it is equivalent to one second, approximately, as their heartbeat. In our imagination, this slows down the operation of the computer to an understandable speed.

Processors have registers and caches on the chip on different levels; L1, L2, and sometimes L3; there is the memory, SSD, disk, magnetic disk, network, and tapes that may be...