This repository contains Java implementations for the solved examples and problems in the book Head First Design Patterns 2nd edition by Eric Freeman, Elisabeth Robson. This book is very useful for ...

"Design Patterns: Elements of Reusable Object-Oriented Software" - Gamma et al "Head First Design Patterns" - Freeman et al "Java Design Pattern Essentials" - Tony Brevis Each pattern is contained in ...

The Command pattern is one of the 23 design patterns introduced with the ... let’s create our own. First, take a look at the class diagram in Figure 2. public interface Vehicle { void start ...