I remember that I have been in design mode should be 1 year ago, it was a big two. I learned Java for a year, I saw Thinking in Java twice. Suddenly I noticed this thing, then I have annified some information, and after the initial contact of the UML language, I gradually thought about the direction of OO. Speaking of design patterns, I was confused when I was in touch with him. After all, I was saying that there was no other concept of object-oriented concept. More in C / C style, the process of writing code, and all feel fresh. After I bought a "Java Design Mode", a thick book, 1024 pages, is the thicker book I have bought. It is not easy to read, but it is difficult to understand the content of the whole.
At the beginning, I contacted the Singleton mode, so I was abused everywhere, and I used a lot of Singleton when I wrote the Web. Since after learning, I know that Singleton is an anti-pattern in J2EE, not recommended. Mainly in the distributed environment, Singleton has lost its meaning.
Static Factory and Abstract Factory I have also used the abuse of the existence of the existence, and then I know how these two things are used.
I feel that the design pattern is learning and actually linked. After all, the design mode is extracted from the actual development. If you get it out, it is very boring.
