Head First. Design Patterns

"Design Patterns" is your book if you have ever encountered software design problems. You don't have to "reinvent the wheel" - just take advantage of the vast experience of developers and the opportunity to use best practices. You will learn why patterns are needed, see how they look and work "in the wild", and once you get used to using them, you can spend your free time on something more complex and interesting. The authors have perfectly shown how patterns are used in the Java API and how to apply Java's built-in support for patterns in your own code. At the same time, you will learn real-world principles of OO programming that will stay with you even when you have to work without patterns. The visually rich format of the book is developed using the latest research in the fields of neurobiology, cognitive science, and learning theory. Therefore, all of its material is instantly remembered, and soon you will be able to easily communicate with other members of your team in the "secret language" of design patterns.