Improving in learning or improving in practice

I am not deep enough in the development field, but I am always interested in learning. I want to know about all kinds of technologies, but I am not deep enough to stay at the surface of the theory. And when it comes to use, I forgot about what I 've seen. I always have an impression on what it is, but it's not exactly.

During J2EE development, I have compared various frameworks. Many people on the Internet are talking about it, and I want to find the best practice recommended by many people from the various online sayings. This is often a waste of time, I did not come to any conclusion.

I used to use tapestry. It was really hard to learn it at the beginning, but its documents were organized quite well. So I still did it. I don't feel like it. In this development, considering struts used by others, we can use struts2 to learn, build, and find that we cannot find the focus when trying to build components. Think about tapestry. Many interfaces are made into components for calling. This is really convenient and requires less repeated code. Struts2 has not yet found a way to make components. Maybe it is not an excellent learning skill?

In this case, we can really compare the difference Between Tapestry And struts2. Will it be improved in learning or in practice? I think that in the development industry, it is still more reliable in practice. I simply say that I do not practice fake tricks. I don't just want to look at theories, think about the truth, and read what others say. I can do it myself to gain a deeper understanding. The principle of crossing the river by pony is so simple.