In arenas ranging from enterprise development to Android app programming, Java
remains one of the world's most popular programming languages. Sams Teach
Yourself Java in 21 Days helps the serious learner gain true mastery over the
new Java 9.
In this book's straightforward, step-by-step approach, each lesson builds on
everything that's come before, helping readers learn Java's core features and
techniques from the ground up. Friendly, accessible, and conversational, this
book offers a practical grounding in the language, without ever becoming
overwhelming or intimidating.
Week 1 introduces the basic building blocks of the Java programming language:
keywords, operators, class and object definitions, packages, interfaces,
exceptions, and threads.
Week 2 covers the