Recently, readers and friends often leave me a message in the background, asking me if I have any interview materials to share, because I have been busy before, so I don’t have time to organize it.
Recently, I finally took some time to organize it, and it was out of control. I sorted out several e-books in one go. One of them is "Java Interview Book 2020" available for free download.
Java basics 83 questions, algorithm related 12 questions, JavaWeb part 20 questions, database part 30 questions, 20 popular frameworks and new technologies, and some knowledge of software engineering, design patterns, J2EE and so on. There are more than 200 questions and a total of 349 pages.
I have privately sent this information to a few fans. After they passed this review, some have made great progress in their work, and some have got better offers.
In addition to the above set of interview questions, there is also a "Java Basic Knowledge Document" that has also been sorted out, and it can also be downloaded directly.
This document sorts out the concepts and usage of many core knowledge in Java. It is very suitable for beginners to learn Java, and it is also suitable for helping everyone consolidate their Java knowledge.
There are 30 knowledge points in this document, including Java programming basics, Java syntax, object-oriented, Java API, collection classes, IO, multithreading, other common classes, and network programming.
This document not only has text descriptions, but also has pictures and code demonstrations in many places. It is a good set of introductory documents for learning Java.
Friends who want to get this PDF can use the following methods: