[JAVA] [Programming News] Qiita Summary Article Weekly July 3rd week, 2019 Vol.1

I made a summary of Qiita's articles that I was interested in yesterday from July 15th (Monday) to July 20th (Saturday), 2019. Weekly version of daily summary articles.

There are still many points to be improved, such as the order and classification method, but I hope you can find a language you are interested in or an unexpected hack method.

Java

• Beginner -Java Performance Chapter 2 Performance Testing Approach
• Tips -Introducing Java tips GreenMail to Junit5 -Differences in the included SDK (Jar) by Java8 type JDK Vender
• Spring Boot -Notes when starting new development with IntelliJ + Gradle + SpringBoot + JUnit5 (jupiter) -Use Spring Test + Mockito + JUnit 4 for unit test of Spring Boot + Spring Retry -Changes in mybatis-spring-boot-starter 2.1

Kotlin

• Tips -Look at the Token using java-jwt in Kotlin

Python

• Beginner -Story dealing with fractions in Python -Introduction to Django General View 1 -Rounding, truncation, rounding up in Python3. -Understanding arguments and return values in Python -Cheat sheet to write Python programs firmly -Cut out Python list with window width while sliding -Try using LINE messaging API with Python && Heroku
• Tips -Automation of sending Japanese emails with Python⇔Excel -Build and distribute Python extension modules with scikit-build and cmake -Read multiple QR codes with Python3 -How to get Google Analytics information in Python -Extract files with a specific extension from a zip file with Python -Try the search algorithm library "simpleai" -I tried using "PyOxidizer" which converts Python to a binary file. -Distribute C ++ extensions written using Boost.Python on wheel -Python3> datetime> Mark a specific date on the calendar (for ARow, ACol calculation in T Calendar in C ++ Builder) -Install Tensorflow GPU in Windows Anaconda environment --K-nearest neighbor method -Nadaraya-Watson estimation and k-nearest neighbor method (1)
• Bottle -Bottle (python framework) tutorial Japanese translation
• Anaconda -Easy installation of XGBoost (as of July 2019) --Machine learning -Mentalism with machine learning seems to have come to me

Ruby

• Beginner -Features of Ruby -nokogiri cannot be installed on macOS
• Apps -Let's develop LINE Bot with Ruby-Questionnaire total Bot-[Step 1]

Rails

• Beginner -How to build Ruby on Rails development environment on CentOS (CentOS7.6 Ruby2.6.3 Rails 5.2.3) -Debug commands that Rails beginners should know -Understanding Rails logs-Basic knowledge of logs-
• OAuth -Rails app enables OAuth authentication for Facebook / Twitter / GitHub
• Tips -Implement post and category linking function in Rails -Summary of constraint types in [Rails] table -FTP communication with Rails -Attach a file with a Japanese file name in rails Action Mailer -[Rails on Rails] How to use environment variables of .env in js file -Use MySQL index hints in Rails (USE INDEX, IGNORE INDEX, FORCE INDEX) -Try new features of Rails6 56 (create_table if_not_exists) -I tried to implement the credit card registration deletion function using Pay.jp -I tried using the send method called metaprogramming (black magic) in Rails --Rails test folder role arrangement -Aggregate using rails query and export csv

C#

• Tips -Convert the image to PDF as it is in C # of Visual Studio 2019. This is a sample code. -[C #] Encrypt data with AES and save to file

Android

• Tips -Connect your Android device and check the log with LogCat -Until the android app is distributed to the amazon app store -How to test using Lifecycle with Spek -[Android / Glide] Round the corners with Glide -Do something with ADB in parallel on multiple Android devices using Docker for Mac

Kotlin

• Beginner -Hello World with Gradle + Kotlin + Thymeleaf

Swift

• Summary -DI (Dependency Injection) Excellent Article Summary (Swift)
• Apps -[Swift / ARKit2] Let's make a moving poster in 1 hour -I made an app that logs in with id and password using RxSwift!
• Tips -[Swift] Detect character strings in images -[Swift] Xcode debugging method summary -Summary of excellent articles in Swift library -Gradient View of Swift (Summary of excellent articles)
• iOS -Preparing for Dark Mode introduced from iOS 13
• RxSwift -Notes on RxSwift

Flutter

• Beginner -Create a Flutter development environment on a Mac (up to the point where it runs on an emulator)
• Tips -Debug the Flutter app -Flutter toast plugin selection (2019/07/20)

JavaScript

• Beginner -What is a javascript callback function? Simple execution example and memorandum -Overview, advantages and disadvantages for those who are not familiar with Atomic Design
• Tips -How to set p5.js as the background of the web page -[JavaScript] The listener is executed differently between mouse click and element.click () [Asynchronous processing]

React

• Beginner -I'm curious about React # 1 Features of React -# 2 component that makes you aware of React
• Tips -Incorporate amazon-connect-streams into React app -[React] Set key to DOM node to optimize redrawing -Implement React Hooks with just 22 lines!

Node.js

• Tips -Using GAS, I made a bot that skips Slack notifications when updating spreadsheets -Rename files on Google Drive with Node.js (Google Drive API v3) -Check if a specific file in Google Drive is under a specific folder with Node.js (Google Drive API v3) -Node.js --chokidar detects changes in CSV file and deep-diff outputs difference comparison information -Babel + flow + jest to create Node.js library development environment -Set ESLint in VS Code -How to scrape using jquery in node.js + selenium environment

Vue.js

• Beginner -Session 8 to study Vue.js -Terraform design and operation know-how -Vue.js environment construction -From software crisis to object-oriented -Introduction to ASAP Vue SPA: Basics of Vue -Preparation Vue 3.x vue-function-api writing list with TypeScript -Introduction to Naruhaya Vue SPA: Life Cycle -Introduction to Naruhaya Vue SPA: Vuex
• Tips -How to style HTML elements with Vue.js
• TypeScript -(Vue.js + typescript) A simple demo of passing data to a component with a type
• Apps -Create a simple image sharing app with Vue + AWS Amplify (Overview) # 1 -Create a simple image sharing app with Vue + AWS Amplify (Create-Deploy) # 2

Vuex

• Tips -You can have a DB at the front desk! Vuex-ORM environment construction and operation check

Nuxt.js

• Beginner -Introduction of Nuxt.js -2.8.1ver- -2019 version Nuxt.js TypeScript development environment setting to make in 3 minutes
• Tips -How to print out only a specific range [Chrome / Nuxt.js / CSS] -Delete console.log only in production environment with Nuxt.js
• Apps -Published SPA application built with nuxt.js on S3 and CloudFront. I tried to build automatically with AWS CodeBuild. Log in Sentry.

Nest.js

• Tips -Try Nest.js + OpenAPI (Swagger) -Try using Sequelize with Nest.js

ReactNative

• Beginner -Talk about building a React Native development environment (Windows) -Build a react native development environment in 1 hour and create a list view application

Laravel

• Beginner -Laravel installation procedure -Laravel features and rules -Laravel 5.8 environment construction -Notes on IntelliJ + Laravel + Vuejs -What I did before building PHP7.1, MySQL5.7, Laravel5.5 environment on AWS Cloud9 and deploying it on Heroku -Until you create a new Laravel project on Cloud9 -Create a development environment called docker + laravel + VSCode + Xdebug -Laravel 5.8 installed on Mac + virtual environment construction
• Tips -Display the value searched from the database with Laravel using pagement -Laravel [Business efficiency] I tried to make an automatic migration file creation tool -How to make API that returns json using laravel -Laravel 5.8 certification -Confirmation items when email cannot be sent from Laravel by SES -Laravel's Docker environment development creates two DBs, separates them for the Web and unit tests, and resets both with one command during development. -Laravel 5.8 Multilingualization -Building LAMP and Laravel environment from 0 on AWS (Windows)
• Apps -A story about a new engineer using Laravel to create a [business efficiency] automatic migration file creation tool

PHP

• Beginner -[YYPHP # 93 "What should I start studying PHP?" "What was the most difficult failure story?" "How to survive in a situation where the source code is too terrible" "When to write test code?"](Https //qiita.com/suin/items/21754fa6cd504b949f74)
• Tips -Do a simple BAN with PHP

CakePHP

• Tips -Prohibit double login with CakePHP -Debug Ajax with CakePHP -Upload files with CakePHP

Rust

• Beginner -Rust custom attribute tutorial

Go language

• Beginner -Build environment with Go + MySQL + Docker -Try to hit the API in Go language
• Tips -Embed various things in template PDF using gopdf in Go 1.12 -Pdf output Japanese format in Go language
• Tools --I made an alias tool for Windows with Golang

R language

• Tips -Settings required for parallel processing with cv.glmnet

jQuery

• Tips -Image display method using jQuery

Go language

• Beginner -Method basics

Unity

• Beginner -Summary of implementation methods often used in Unity

Bot

• Tips -Note a little task with LINE bot

HTML

• Tips -Round the corners of HTML elements to display

SQL

• Beginner -SQL Anti-Patterns-13 Chapter Fear Unknown-Summary
• Tips -Redundancy and performance trade-off in normalization

MySQL

• Beginner -MySQL Basic Grammar -MySQL Recommended and Convenient Client Tool -Installing and using MySQL -MySQL basics (database operation) 3 -Commands around DB users in MySQL -Connect to MySQL without entering password from command line
• Tips -How to keep the update history of MySQL table in history table

PostgreSQL

• Beginner -PostgreSQL database operations
• Tips -Statically check PostgreSQL queries

MongoDB

• Tips -[MongoDB] Create an authentication user when starting the Docker container of MongoDB

SQL Server

• Tips -[SQL Server] Search for tables, columns, and extended properties in DB

big data

• Beginner -10 selections of online courses for big data analysis

Visual Studio

• Beginner -How to install Visual Studio 2019 and create an SSIS project -Visual Studio Code main shortcut key (mac)

AI

• Beginner -[Introduction to Clustering No. 0] Let's implement the basic k-means method of data classification in Java

Git

• Beginner -Git branch operation -Illustration! Read Git's branch tree properly -Publish a web page in 10 seconds using GitHub Pages -Change the committer name and author name on GitHub -Git fast understanding
• Tips -Check the difference of the Excel file managed by git -Github command memorandum -[Git] Make it easier to see the date and time of git log

AWS

• Beginner -AWS Glossary -AWS beginners went to AWS Summit -I tried to summarize the AWS basics that you should know even if it is not in the system configuration diagram
• CloudFront -Https redirect (S3 + CloudFront + Route53)
• VPC -Amazon VPC Endpoint Gateway and Interface
• AWS Lambda -AWS to start with new employees-Let's start and stop the server automatically using Lambda- -Procedure for using Python Pillow with AWS Lambda -I wrote a Lambda function in Java and deployed it with SAM -I made an AWS Lambda process that runs on time with python -Realistic solution if you still want to use Lambda and RDS
• AWS CLI -I tried mounting EFS on EC2 using AWS CLI -[[# Aws-cli] Install "AWS command line interface (aws-cli)" in a Windows environment without administrator privileges #AWS #awscli #Environment construction #Environment settings](https://qiita.com / kukita / items / 6f19025ba9fea29f281c)
• Cognito -Verify JWT token at the time of Cognito user pool authentication with jwt.to
• S3 -Use AWS S3 as a deb package repository
• EC2 -Connect to an AWS EC2 instance with ssh via a browser
• Elasticsearch -Even AWS Elasticsearch makes a request with SQL
• AutoScaling -Auto Scaling Schedule [Note]
• CloudWatch -I tried to visualize CloudWatch using Grafana
• EKS -Getting Started with Amazon EKS
• DynamoDB -I created an Amazon DynamoDB table with CloudFormation
• AWS DeepRacer -In-house study session: AWS DeepRacer basics (model creation) was held -In-house study session: AWS DeepRacer basics (log acquisition) was held -In-house study session: AWS DeepRacer basics (hyperparameters) was held -In-house study session: AWS DeepRacer application (model analysis / visualization) was held
• Cloud 9 -I checked AWS Cloud9 -Get the source code published on github on Cloud9 -Operation of AWS with VScodeCloud9 | Causes and remedies for access errors
• Tips --AWS Encryption Service -Oracle Cloud and AWS Function Name Correspondence Table (Network) -Story of participating in AWS Summit Tokyo 2019

Azure

• Azure AD -Sign in with FIDO key in Azure AD 2 (Windows 10 settings-Desktop sign-in)
• Azure -Alert settings such as memory usage of Azure VM (Telegraf + Azure Monitor) --How to add users to Azure
• Tips -Build WordPress on Azure

Active Directory

• Tips -[Java] Active Directory Reference / Update

infrastructure

--Virtual environment -How to set up a virtual environment with Vagrant

• ubuntu -ubuntu environment construction
• Terraform -Terraform design and operation know-how

Blockchain

• Beginner -Understanding blockchain with Go or python -Understanding the seven questions about the virtual currency Libra by FaceBook
• Tips -[Experience meeting material] Make a blockchain with JavaScript!

Security

• Beginner -I tried to explain SSH more accurately than anyone else, but in an easy-to-read manner.
• Tips -How to spot a secure website (tentative name)

Network

• Tips -List all network addresses

RPA

• Apps -What people are doing unconsciously in Shiritori games-Try to develop a Shiritori robot by RPA-

CI

• GitLab Runner -Monitor Gitlab Runner with Prometheus

Docker

• Beginner -Build a Laravel environment on Docker -Personal memo: Using Docker for the first time -[For beginners] Docker hands-on to build Laravel development environment at explosive speed in 20 minutes
• Tips -Set user to non-root with Docker + Nginx + PHP-FPM
• nginx -Building a network with Docker -nginx container and tomcat container-

kubernetes

• Beginner -Matter that made it very easy to build kubernetes locally

Linux

• Tips -About setting the stack size in Linux multithread programming

Cent OS

• Beginner -How to run httpd graceful on CentOS 7 or later

Google API

• Google Books APIs -Book Search Google Books APIs + Scraping with PHP

Google Apps Script

• Beginner -I tried to summarize until "Hello, World!" Is output by GAS.
• Tips -Summary of Spreadsheet basic operations by GAS -[GAS] How to copy from a spreadsheet to another spreadsheet
• Apps -Using GAS, I made a bot that skips Slack notifications when updating spreadsheets -Post Japanese to GAS -Automatically mark Gmail when bought on Amazon as read

Google Cloud Platform

• Tips -Google AI Platform --Cloud ML Engine and File I / O
• Apps -Study GCP on the subject of public competition

Google Colaboratory

• Apps -I tried using Spotify API with Google Colaboratory

Google Drive

• Tips -How to get all public folders of Google Drive

Unity

• Beginner -I installed Unity

Firebase

• Tips -Register for a free GCP trial that you should definitely do before changing your Firebase paid plan -How to run Next.js 9 with Firebase Cloud Functions

Server Side

• Tips -[Postman] How to write when passing an array with Get method

CSS

• FLOCSS -Results of thinking about the questions raised by applying the CSS design method "FLOCSS" and the findings and failures obtained
• Tips -[Simple-debug.css plugin that explodes the development efficiency of css](simple-debug.css plugin that explodes the development efficiency of ss)

BootStrap

• Tips -I want to use the modal of Bootstrap 4 on iPhone

WordPress

• Beginner -How to start a local server with XAMPP and create a Wordpress practice environment

Develop

• Beginner -What to do to improve your programming skills -10 important things as SE -Six months from inexperienced work to self-taught engineer at an in-house developed company -Humbly review the JSON specifications and implementation examples in each language -Books I want to read / Good to read -You can receive code reviews from overseas mentors! "Exercism" Recommendation
• Tips -[Regular expression] Easily extract words from English -Automatically apply mosaic to face photo -How to clear Chrome cache in 5 seconds -Make and present slides with Marp + Netlify (+ pdfpc) -[PowerApps Tip's] The first trap and workaround that many experienced developers fall into -Summary of regular expressions -Simple impression of changing jobs as a web engineer and starting full remote work (bulleted list) #remote work -Prepare a deployment script for rental server FTP to enjoy deployment
• Coding -How to use language standards and coding standards
• Regex -About basic Regex (regular expression)
• Apps -I got an appointment from the calendar and posted it to slack -Try making LTE yourself (Part 3)

PowerShell

• Tips -PowerShell script to change the time stamps of multiple files at once -Batch to compress multiple files by file from right click -Get the diff of the folder contents with PowerShell

Vim

• Beginner -Introduction to Personal Vim --Introductory commands for vim

awk

• Tips -The story of using awk to get the average, minimum, maximum, and tile values from the access log

LaTex

• Tips -Add a bookmark (table of contents) to the PDF file with LaTeX + pdfpages

Redmine

• Tips -Convenient Redmine Plugin

UML

• PlantUML -I tried using PlantUML -PlantUML Memo -[UML] Write UML with VS Code + PlantUML

Raspberry

• Beginner -Run from RaspberryPi3 setup 0! Overview (Summary) -Even those who have no experience with Raspberry Pi could do it in about 3 hours! Raspberry Pi 3B + From unpacking to being able to shoot with a webcam
• Tips -Control the remote control using Raspberry Pi 3 Model B + and lilc 1 -Install Docker on Raspberry Pi (Raspbian Buster) -Ssh setting method of Raspberry Pi -9th Let's make a surveillance camera with Raspberry Pi! ~ Still image distribution (HTTP) ~ -Install Docker on Raspberry Pi (Raspbian Buster) -Start your PC from Raspberry Pi using google home
• Apps -Automatically close the window shutter when it gets dark (Raspberry Pi Zero W + Switch Bot)

Bot

• Apps -About making a bot that returns anime quotes so that LINE conversations can be conveyed more

IoT

• Apps -[Introduction to IoT] A story about playing with a GPS tracker

Windows

• Beginner -Personal Windows 10 environment construction
• Tips -Package management software "chocolatey" for Windows is convenient -Add the function to pass the environment variable "PATH" of Windows to the "Send" menu of the context

SharePoint

• Tips --Invite guest users who cannot receive emails to SharePoint -I want to access the REST API with user credentials in SharePoint Online

VBA

• Tips -The official document cannot be read Poison in this world

ShellScript

• Tips -Get data from MySQL with shell script -Du command Find out files with large capacity -Identify files that are squeezing the disk on Linux

WPF

• Beginner -Introduction to WPF

Security

• SSL -Learning SSL

UI

• Tips -Even engineers want to make mock (useful functions and design tips of Adobe XD)

Ansible

• Beginner -In-house study session material: Ansible introductory summary that was completely mastered in 2 weeks
• Tips -VM construction using Vagrant specialized for Ansible verification environment --ssh public key authentication setting between multiple VMs / shared folder

Arduino

• Apps -Make OS with Arduino

Julia

• Beginner -Using Julia with WSL -I tried knocking 100 language processing with Julia Chapter 4

Qualification

--AWS Solutions Architect -40,000 yen and 1 month to pass AWS Solution Architect Professional and Snowball -[AWS] AWS Solution Architect Associate Passed -Story of passing AWS Solutions Architect Associate in about 3 weeks -Summary of what you learned to qualify as an AWS Certified Solution Architect Associate -[[Do not be frustrated even if you are inexperienced] How to get AWS Certified Solutions Architect Associate in 40 hours]([Do not be frustrated even if you are inexperienced] How to get AWS Certified Solutions Architect Associate in 40 hours) -What I did and didn't do to pass the AWS Solutions Architect Professional --Ruby Engineer Certification Exam -To you who take the Ruby Engineer Certification Exam Silver

• Basic information -Data handled by the basic information engineer computer --Network -Network Specialist Exam Passing Experience --G test -G Test (Deep Learning For GENERAL)

update information

• Kotlin --Introduction to Kotlin -Chapter 1 First Kotlin Application -Chapter 2 Kotlin Grammar [New]

• Java

  • Java 10 -[Java] Things to note about Java 10 extended type inference

• IDE

  • IntelliJ IDEA -[Development environment] Integrated development environment (IDE) in local environment: IntelliJ IDEA installation procedure -[Development environment] Integrated development environment (IDE) Japanese localization and customization of IntelliJ IDEA -[Development environment] [IntelliJ IDEA] Use LiveEdit to dynamically reflect HTML / CSS.