1. Always reminders that Java is an OOP language tool, not just encoding, only in this way can grasp and use Java.
2. In the process of learning, it is best to understand the underlying mechanism of Java, not only to stay in the surface, not the example of the example on the book. Be careful; even if you have a simple example, you should be patient to ponder, debug, and change.
3. Be sure to do it during the process of learning, write code, not to hold a book to see it. Many things and experiences must be able to do their own, it is best to participate in some actual projects.
4. After learning to a certain stage, what you have begun to do what you have learned. At this time, you should start learning some more, more complicated knowledge, such as the construction of the J2EE platform, EJB development, etc. For this part, I suggest that it is best to find a thin book to understand a general, there is a general understanding, and a framework, while providing a lot of practical examples to deepen the understanding of J2EE.
