At present, Java can be said to be the most popular language of the industry and academia. Many readers are very urgent to learn Java. Unless you can download the needs of the professional skills like a movie "Hacker Empire" (Matrix) (only spend a few seconds of downloading data in the heroine, you will immediately have a pilot's skills), or the martial arts novels in the martial arts novels The way, otherwise it takes a bitter study for a while. It takes time, not tightening, I am afraid that the method is wrong, and it is half a time. I think that learning Java includes the following categories:
