About the author
Helder da Rocha has taught, written, and developed applications with Java and web technologies since 1995. In 1996, he wrote one of the first books in Portuguese about HTML and JavaScript. Since then he has created hundreds of presentations, tutorials, and course materials on Java, Java EE, programming tools, patterns, techniques, methodologies, HTML, CSS, JavaScript, SVG, XML, data visualization, Arduino, and the Internet of Things. He holds a master's degree in computer science. He also has a background in the visual arts and design and has some of his artwork in permanent museum exhibits. He lives in São Paulo, Brazil, where he works as an independent consultant, developer, and instructor, and is a frequent speaker at ...
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