List activeUsers = users.stream() .filter(User::isActive) .map(User::getName) .toList(); Use code with caution.
: You can purchase the full eBook (PDF, ePUB, Mobi) directly from The Pragmatic Bookshelf for approximately $24.95. Free Sample Extracts (PDF) : Preface and Intro . Example: Document Using Examples . Example: Split Method with Boolean Parameters . Learning Materials
: Visit Java by Comparison for a free sample and general information about the book. java by comparison pdf link
By reading "Java by Comparison," developers can:
: A free PDF Sample Extract is available, containing selected pages to demonstrate the book's "before-and-after" layout. List activeUsers = users
Using traditional loops for filtering data creates unnecessary boilerplate code.
public class Account private boolean isActive; public void processTransaction(Transaction t) if (isActive) t.execute(); Use code with caution. Example: Document Using Examples
Written by , Jörg Lenhard , and Linus Dietz , the book was born from the authors' experiences as university lecturers. They noticed a gap in traditional education: students could write code that worked , but often lacked the experience to write code that was readable, maintainable, and professional. The "Problem-First" Philosophy