This Java tutorial, which was liked by 140,000 people on github, is too strong

A few days ago, a friend asked me the following question after joining me. jcombobox after seeing it, 061aec0303f0ca? To be honest, I have completely forgotten that there is such a thing in Java.

After searching on the Internet, it turns out that it is a drop-down list component swing What is swing swing awt , both are graphical tools in the Java language, but swing and awt were not used many years ago. Why? Because of its ugliness, the things made are extremely ugly.

Here are two swing and h5 respectively to get an intuitive experience.

swing

Later I learned about the situation with a few students and found that many universities are still learning the swing . In order for everyone to understand a key content of current Java learning, I think it’s time to take a look at Java. Of knowledge.

The following summary of Java knowledge points was liked by 140,000 people on github (github address will be given at the end of the article). The content is very concise, divided into five parts in total, namely Java basics, Java container, Java IO , Java concurrency and Java virtual machine.

I spent another seven days to organize and improve it, and formed a 167 pages. If the students who are just getting started feel that the content is too much, they can focus on learning Java basics, Java container and Java IO three sub-contents. For the remaining Java concurrency and Java virtual machine as an understanding.

Let's take a few pictures to see the content