programming-links

https://www.thenewboston.com/videos.php?cat=31 - Java beginners (89 videos of under 10 minutes each)
Introduction to Programming Using Java, Seventh Edition: http://math.hws.edu/eck/cs124/javanotes7/ - free, on-line textbook on introductory programming, which uses Java as the language of instruction. Contains explanations, exercises and solutions.
Head First Java (book)

Official Oracle docs:

OCA/OCP exam & exam prep:

http://sybextestbanks.wiley.com (OCA/OCP study guide materials)
https://testbanks.wiley.com/WPDACE/Login (OCA/OCP Practice Tests)
https://www.selikoff.net/

Java 9:

https://blog.knoldus.com/2017/07/26/did-someone-say-java-9/

String functions: http://string-functions.com/

Regex: https://docs.oracle.com/javase/8/docs/api/java/util/regex/Matcher.html

Various:

https://dzone.com/articles/optional-method-parameters

JetBrains IntelliJ IDEA Blog

Baeldung

DZone: Java

Foojay Today

Foojay - Overview of all JVM command line arguments - Java 11

InfoQ

OpenJDK

Kotlin

https://medium.com/@octskyward/why-kotlin-is-my-next-programming-language-c25c001e26e3

https://kotlinlang.org/

https://www.kotlin.nl/

JetBrains Kotlin Blog

https://blog.philipphauer.de/idiomatic-kotlin-best-practices/

Kotlin in Action (book)

Using Maven to compile Kotlin and Java resources

Scala

http://docs.scala-lang.org/tutorials/scala-for-java-programmers.html

http://fileadmin.cs.lth.se/scala/scala-impatient.pdf

https://technologyconversations.com/2014/03/10/scala-tutorial-through-katas/

https://www.rea-group.com/about-us/news-and-insights/blog/java-to-scala-cheatsheet/

Go

https://blog.golang.org/examples

Go - the good, the bad, the ugly

Amazing artwork by Ashley McNamara

Angular

https://angular.io/docs

Git

Git documentation: https://git-scm.com/doc

Video: http://learngitbranching.js.org/index.html?demo

https://www.youtube.com/watch?v=1ffBJ4sVUb4

http://ohshitgit.com/

How to Write a Git Commit Message: https://chris.beams.io/posts/git-commit/

Why squash git commits for pull requests? https://softwareengineering.stackexchange.com/questions/263164/why-squash-git-commits-for-pull-requests

http://rogerdudler.github.io/git-guide/ - basic guide

Tips from CodeSchool Git Real course:

http://gitimmersion.com/

http://gitready.com/

http://www.ndpsoftware.com/git-cheatsheet.html

https://jwiegley.github.io/git-from-the-bottom-up/

https://git-rebase.io/

Spring

https://spring.io/guides

https://spring.io/guides/gs/rest-service/ - 15 min tutorial to build a simple REST service

https://www.tutorialspoint.com/spring/

https://bolcom.github.io/java-spring-basics/

https://docs.spring.io/spring/docs/3.0.x/spring-framework-reference/html/mvc.html

Spring Blog

Maven

Introduction to build profiles

GraphQL

https://graphql.org/learn/

https://www.graphql-java.com/tutorials/getting-started-with-spring-boot/

https://www.graphql-java-kickstart.com/tools/

https://medium.com/paypal-engineering/graphql-resolvers-best-practices-cd36fdbcef55

https://blog.apollographql.com/optimizing-your-graphql-request-waterfalls-7c3f3360b051

https://blog.apollographql.com/batching-client-graphql-queries-a685f5bcd41b

Security

Oracle Security Alerts

Front end

https://www.w3schools.com/cssref/css3_pr_word-break.asp

Testing

Get some ideas here:

https://github.com/kdeldycke/awesome-falsehood/blob/master/README.md

https://medium.com/@ezagroba/have-i-tried-enough-weird-stuff-7ed4105ae994

Testing & Test Automation

Test Developers Aren’t Testers

Test Developers Aren’t Testers, Follow-Up

Automation in Testing - Free courses

http://rcpaterson.co.uk/blog/test/dont-shift-left-expand-outwards-and-accelerate-failure/

http://www.benrady.com/2016/11/testing-with-fire.html

Mutation testing: http://pitest.org/

Minitry of Testing - practice sites - Need to sign in.

https://bugmagnet.org/

How do you decide what to automate? by Katrina Clokie

When Should a Test Be Automated? by Brian Marick

Become a Ministry of Testing author

Bug Bash at Saucelabs

Bug Bash as Songkick

Test automation patterns

Regression testing heuristic

Doing terrible things to your code

Have I tried enough weird stuff?

Test types

Characterization test - to describe (characterize) the actual behavior of an existing piece of software, and therefore protect existing behavior against unintended changes.

Approval test

Test / quality tools

https://javapapers.com/java/java-micro-benchmark-with-jmh/ - Benchmark is the process of recording the performance of a system. (Macro) benchmarks are done between different platforms to compare the efficiency between them. Micro benchmarks are done within the same platform for a small snippet of code.