Book excerpt: Professional Java Native Interfaces takes a solutions-based approach in showing how SWT/JFace works, discussing each common component, providing useful, practical ideas, tips and techniques to make the Java developers' work easier. The author provides relevant and timely examples, both stand-alone applications and smaller code snippets that readers can incorporate into their own code. To provide a truly real-world quality, the author builds an email/ftp client sample application to show readers how to combine everything into a presentable Java native UI application.