The changes in Java 8 are significant. Syntax and usage of the language are changed considerably with the introduction of closures and lambda expressions. This book takes you through these important changes from introduction to mastery. Through a set of clear examples, youâll learn to refactor existing code to take advantage of the new language features. Youâll learn what those features can do for you, and when they are best applied. Youâll learn to design and write new code having these important new features in mind from the verybeginning.