Introduction - If you have any usage issues, please Google them yourself
Design patterns (Patterns in Java) in a real reusable object-oriented programming, GoF' s " Design Patterns" provides us with a set of reusable object-oriented technology, coupled with the Refactoring (reconstruction method), so there is rarely a simple repetition of the work, together with Java code and object-oriented purity refining (java design pattern is the soul), programming will become a moment you experience the thrill of the exciting process of creation.