Programmer Think

My LeetCode: https://leetcode-cn.com/u/ituring/ My LeetCode source code [GitHub]: https://github.com/izhoujie/Algorithmcii LeetCode 235. The nearest common ancestor of binary search tree subject Given a binary search tree, the nearest common ancestor of two specified nodes in the tree is found. The definition of the nearest common ancestor in ...

1. Basic knowledge 1.1. Introduction Log4Net is an open source logging framework that is powerful enough to classify logs into different levels and output them to different storage media in different formats, such as databases, txt files, memory buffers, mail, consoles, ANSI terminals, remote receivers, and so on. Log4Net divides logs into five ...

brief introduction The new feature of switch has a long history. It was introduced as a preview function as early as JDK 12, and finally became an official version of the function in JDK 14: JEP 361: Switch Expressions (Standard). In fact, there are two new functions of switch, one is that case can be linked, the other is that switch can bring ...

My LeetCode: https://leetcode-cn.com/u/ituring/ My LeetCode source code [GitHub]: https://github.com/izhoujie/Algorithmcii LeetCode 297. Serialization and deserialization of binary tree subject Serialization is the operation of converting a data structure or object into continuous bits, and then the transformed data can be stored in a file or ...

[SpringBoot Basic Series] Implement a custom configuration loader (application) The @Value annotation is provided in Spring to bind configurations so that they can be read from the configuration file and assigned to member variables; sometimes, our configurations may not be in the configuration file, if they existDb/redis/other files/third-p ...

Catalog: andorid jar/library source code parsing  RxJava2: Role: Optimize logical processes by providing an architecture that provides a model for observers and subscribers.Suitable for complex and multi-data conversion and long processes. Chestnuts: Define three object classes public class ResultInfo { public int code; public String ...

For reprint, please indicate the source: This article is from zhch Pan's blog http://www.cnblogs.com/zhchp-blog/   This blog is the source code reading work I did before when I did the project. po went to the Internet to help others better understand the V-LOAM project implementation. Some local codes have been modified, which may be differen ...

Suppose we have the following structure: type User struct { Id int Name string Bio string Email string } We need to verify the validity of the fields in the structure: · the value of Id is in a range. · the length of Name is in the range of none. · Email format is correct. We might writ ...

Native Webview knowledge: 1: Registration related authority <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> 2:webview common methods goBack() //Back off go ...

brief introduction The. Tubegeeometry stretches a tube along a 3D style curve (the. Catmullromcurve3 object). Simplest implementation var tubeGeometry = new THREE.TubeGeometry(path,segments,radius,radiusSegments,closed); Description of relevant parameters attribute Required or not describe path yes This property specifies t ...