java basic interview questions

java basic interview questions (2) 1. The difference between Java and javasciprt. [Basic] A: JavaScript and Java are two different products developed by two companies. Java is a new generation of object-oriented programming language introduced by SUN, which is especially suitable for Internet application development. JavaScript, Netscape's pro ...

Posted on Sun, 05 Dec 2021 18:48:26 -0500 by bombayduck

Deep parsing: understand how MyBatis is initialized in the Spring container

The initialization process of MyBatis is to generate some necessary objects and put them into the Spring container. The question is what objects are generated by this process? When MyBatis initialization fails, how to correctly find the entry point to analyze the problem? This paper will introduce these problems. Based on MyBatis 3 and Spr ...

Posted on Sun, 05 Dec 2021 07:13:01 -0500 by sxiix

A set of solutions for Spring Security OAuth2 authorization mode extension and application practice

1, Foreword [APP mobile terminal] Spring Security OAuth2 SMS verification code mode [wechat applet] Spring Security OAuth2 wechat authorization mode [management system] Spring Security OAuth2 password mode [management system] Spring Security OAuth2 verification code mode The four authorization modes implemented by Spring Secur ...

Posted on Fri, 03 Dec 2021 11:18:27 -0500 by MasterACE14

JDK dynamic agent and CGLIB dynamic agent are really different

Absrtact: This article takes you to understand JDK dynamic agent and CGLIB dynamic agent This article is shared from Huawei cloud community< This article takes you to understand JDK dynamic agent and CGLIB dynamic agent >, author: skin shrimp. What's the difference between the two 1, Jdk dynamic proxy: use the interceptor (to imple ...

Posted on Thu, 02 Dec 2021 20:40:48 -0500 by jamesm87

leetcode lecture on algorithm interview in Dachang 14. Sorting algorithm

leetcode lecture on algorithm interview in Dachang 14. Sorting algorithm Video Explanation (efficient learning): Click to learn catalog: 1. Introduction 2. Time and space complexity 3. Dynamic planning 4. Greed 5. Binary search 6. Depth first & breadth first 7. Double pointer 8. Sliding window 9. Bit operation 10. Recursion &amp ...

Posted on Wed, 01 Dec 2021 05:29:10 -0500 by law

Finally understand why Spring Boot is so popular with HikariCP. This picture is too thorough

preface Now many companies are using HikariCP. HikariCP has also become the default connection pool of SpringBoot. With SpringBoot and microservices, HikariCP will be widely popularized. Next, Chen will take you to analyze why HikariCP can be invited by Spring Boot from the perspective of source code. The article directory is as follows: ...

Posted on Mon, 29 Nov 2021 05:24:00 -0500 by ShanesProjects

[advanced MySQL database] two major queries of interview questions (aggregate query and joint query)

Advanced MySQL 1, Aggregate query The functions and usage used in aggregate query are very similar to that of Excel. If you play NB in Excel, you can basically combine query, which is very easy. ๐Ÿ˜๐Ÿ˜๐Ÿค—๐Ÿค— Aggregate query is related to rows. Merging query results according to row dimensions means merging multiple rows. 1.1 aggregate function ...

Posted on Sun, 28 Nov 2021 09:42:39 -0500 by KCKTechs

leetcode lecture on algorithm interview in Dachang 8. Sliding window

leetcode lecture on algorithm interview in Dachang 8. Sliding window Video tutorial (efficient learning): Click to learn catalog: 1. Introduction 2. Time and space complexity 3. Dynamic planning 4. Greed 5. Binary search 6. Depth first & breadth first 7. Double pointer 8. Sliding window 9. Bit operation 10. Recursion & divid ...

Posted on Fri, 26 Nov 2021 21:57:23 -0500 by voyde

Netease Interviewer: would you please implement JS overload? It's not a TS overload!

prefaceHello, I'm Lin Sanxin. In the most easy to understand words, the most difficult knowledge point is my motto. The foundation is advanced, and the premise is my original heart. Today I'll tell you a question. It's a Netease interview questionA classmate: "how to implement JS overload?"Me: "is JS overloaded? Isn't it TS?&quot ...

Posted on Wed, 24 Nov 2021 21:32:06 -0500 by michaelowen

Internet classic algorithm interview question - Verifying binary search tree

preface Hello, I'm brother Xiong. Today, I bring you a high-frequency interview question related to binary tree. This question has been used as an interview question by big companies such as Google, byte, Microsoft and Amazon in half a year, that is, the 98th question on force buckle - Verifying binary search tree. This paper mainly introduce ...

Posted on Wed, 24 Nov 2021 14:29:24 -0500 by CFennell