JVM Resources

Posted on January 10, 2020  (Last modified on October 23, 2022 )

2 minutes  • 234 words

Java

Java is a language/platform maintained by Oracle. It’s known for it’s “Write-Once-Run-Anywhere” mantra and, in my opinion, for its verbosity.

• How to use Java’s Enums
• The Builder Design Pattern
• Reflection

Kotlin

Kotlin is a cross-platform, statically-typed language that often targets the JVM. It’s used for web development, Android development, and much more.

• Dependency Injection via The Facade Pattern

• Controllers in the KTOR web framework

• Testing via Expekt

• Kotlin Sequences

• Sealed Classes

• Testing Companion Objects

Android

Android is a mobile operating system designed primarily for touchscreen mobile devices such as smartphones and tablets. Development is done predominantly in Kotlin or Java.

• SurfaceFlinger

• Testing views via FormatterObjects

• What is Proguard?

• Overriding Button Styles

• When to use a Dimensions file

• Using Butterknife with Kotlin

• Pending Intents

• ListView/RecyclerView

Clojure

Clojure is a modern, dynamic, and functional dialect of the Lisp programming language that can be built to target many platforms, although predominantly the JVM or JavaScript.

• Futures in Clojure
• Intro to Async Programming
• Guide to Clojure.Spec
• Provisioning a Clojure VM
• Map vs PMap
• Linting with Kibit and Eastwood
• The Thread Macro (->)
• Multimethods
• JSON Web Tokens
• Macros
• Postgres + YeSQL Trigram Search

Scala

Scala combines object-oriented and functional programming in one concise, high-level language. Note: Most of these examples will be using Scala 2.X

• Pagination with Slick
• Creating a Java Bean from a Scala class
• Scheduling background tasks in Play
• Upper/Lower Bounds in Scala
• Generics in Scala