本次為熱身場，介紹如何在各作業系統安裝多個版本的 JDK、如何用 JetBrains Toolbox 安裝 IntelliJ IDEA、如何用 Kotlin 寫第一個 Hello World 程式，以及相關學習資源介紹。

1. Kotlin
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(Shengyou Fan)
2020/03/15

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• Developer Advocate
• Backend Developer
• Open Source Community Organizer
fb.me/shengyoufan

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• Kotlin
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4. Kotlin https://youtu.be/hg8oYJ8Ez8s
• General-purpose
• Static typing
• OOP + FP
• Developed by
JetBrains
• Open Source
(Apache 2.0)
https://kotlinlang.org/
Kotlin
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5. Kotlin
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Browser
Kotlin/JS
Server
Kotlin/JVM
iOS
Kotlin/Native
Android
Kotlin/JVM

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• Kotlin
• …
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• + + …

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• Kotlin
• Kotlin Kotlin
• Kotlin
• Kotlin Server Side

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• 14:00-15:00
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10. —
• JDKs
• IntelliJ IDEA
• Kotlin
• IntelliJ IDEA

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OpenJDK 8+ IntelliJ IDEA

12. JDKs (Unix-like)
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$ curl -s "https://get.sdkman.io" | bash
$ source "$HOME/.sdkman/bin/sdkman-init.sh"
$ sdk install java
$ sdk list java
$ sdk current java
$ sdk use java <version>
$ sdk default java <version>
$ sdk upgrade java
https://sdkman.io/

13. Oracle JDKs (Windows)
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https://www.oracle.com/technetwork/java/javase/overview/index.html
Oracle JDKs
• Java SE
• JDK
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14. JDKs (Windows)
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# Install Scoop
$ Set-ExecutionPolicy RemoteSigned
-scope CurrentUser
$ iwr -useb get.scoop.sh | iex
# Install JDKs
$ scoop bucket add java
$ scoop install openjdk11
$ scoop install oraclejre8
# Setup JDK
$ scoop reset oraclejre8
https://scoop.sh/

15. IntelliJ IDEA
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ToolBox App

16. JetBrains Toolbox
Chrome Extension
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https://plugins.jetbrains.com

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19. —
Line Telegram
https://line.me/R/ti/g/jAG_c1DMaO https://t.me/joinchat/DAUjOBrfu7_05sa9YYb5FQ

20. —
• Taiwan Kotlin User Group
• Kotlin Taipei
• TWJUG
• Android
• GDG
• Taiwan Backend Group