Programmer Think

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 ...

Introduction to producer consumer model 1. Why the producer consumer model is needed Producer refers to the task of production data, and consumer refers to the task of consumption data. When the producer's production capacity is far greater than the consumer's consumption capacity, the producer needs to wait for the consumer to consume before c ...

Author|Wang Xining Senior Technical Expert of Alibaba Guidance: This paper is abstracted from the book "Istio Service Grid Technology Analysis and Practice" written by Wang Xining, a senior technical expert in Ali Cloud. It describes how to use Istio to manage multi-cluster deployment to illustrate the support capability of service ...

Jetpack series Android Jetpack architecture component - Lifecycle usage Android Jetpack architecture component - LiveData usage The use and principle of ViewModel, an architecture component of Android Jetpack Android Jetpack architecture component - Paging introduction and Practice Android Jetpack architecture component - Roo ...

Preface When our App makes network requests, it often encounters network disconnection, reconnection, data flow and WIFI changes. So how do we judge the current situation? Next, we will introduce the commonly used network state judgment methods. Determine if there is a network connection Judge whether WIFI network is available Determine whethe ...

Completing Kubernetes binary deployment step by step (I) -- etcd cluster building (single node) Preface The basic theory and core components of Kubernetes are briefly introduced. The first step of deploying Kubernetes cluster with single node and binary system is to build etcd cluster experiment flow. List of cluster planning (the next article ...

There was a project before Android using webview to load the contents of the web page, and then adding the original function of APP. This project has the integration of WeChat, Alipay, qq wallet and other H5 payment methods. Recently, the content of the payment version has been upgraded on the webpage side, resulting in ...

1. elatic engineer certification examination If you have the strength, you can take the exam. It will be helpful for the appreciation and salary increase 2. es architecture Ecosphere install jvm configuration Install plug-ins Use elasticsearch plugin in elasticsearch-7.1.0/bin to install the plug-in. es will download a ...

Android integrated Baidu character recognition 1.4.0 Baidu AI open platform has opened the service of character recognition, which can realize the recognition requirements of some general characters, network pictures and characters, various cards (ID card, bank card, driver's license, driving license, license plate bus ...

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 ...