1. Foreword:
There are not many things in the company recently. It took some time to sort out the knowledge system. I am also some of Baidu and Google, and I am afraid of making mistakes.
This article is mainly in the form of mind maps and brain maps. It will not expand the details. It will simply focus on sorting out:
most of the interviews such as HashMap, ArrayList, thread pool, etc. are required questions, as long as the interviewer asks you about java basics.
2.java chapter:
2.1 java basics:
Recommended books: "Thinking in Java" + "Effective java"
Note: Thumbnails are a bit blurry, it is recommended to view the larger image on a PC, or save it locally for viewing.
2.2 JDK common libraries:
Recommended books: "Thinking in Java" + JDK source code
2.3 Java Concurrency:
Recommended Books: "Java Concurrency Programming Practice" + "In-depth Understanding of Java Virtual Machine"
2.4 JVM:
Recommended book: "In-depth understanding of java virtual machine"
3. Summary:
The basics of java is almost here. Overall, I think when you are interviewing, if you ask about the basics of java, the interviewer is just trying to assess whether your java foundation is solid, so some interviews are based on you When you sit down, you are asking about your basics. If you do not answer the basics well, the interviewer will think that you have not even done a solid Java basics, and there will be no follow-up between you, that is, you will not be asked any more questions. . In general, when I was interviewing before, the most basic questions about java were: HashMap and ArrayList, as well as threads and reflection, and binary trees.
This article refers to: Author: The article when the bug cried : You can pay attention to this author.