Java is one of the most popular programming languages in the world, operating on more than 7 billion devices and used by more than 9 million developers around the globe. Airplane systems, ATMs, cell phones, computers, medical equipment, parking meters, and televisions all run on Java. For those interested in coding today, a knowledge of Java is essential. Many technology professionals consider it easy to learn and its coding style is intuitive. Readers will gain a basic understanding of Java, how it works, its many uses, and how to acquire the skills needed to master this vital programming language.