Android APP Day 5 Kotlin setup

 Ref: kotlin doc

 Ref: Kotlin github

Kotlin release 1.7.20 2022. Sep. 29

kotlin-compiler-1.7.20.zip

解開後把目錄搬到 /usr/local/bin 下, 並建立路徑

% sudo mv kotlinc /usr/local/bin/kotlinc

% vim ~/.bash_profile

加入 PATH

#kotlin export PATH="/usr/local/bin/kotlinc/bin:$PATH"

% source ~/.bash_profile

--

測試:

% kotlin 

 Welcome to Kotlin version 1.7.20 (JRE 16.0.1+0) 

Type :help for help, :quit for quit 

>>> :quit

--

Hello world

github program hello.kt

% kotlinc hello.kt -include-runtime -d hello.jar

    hello.kt:1:10: warning: parameter 'args' is never used 

    fun main(args:Array) { 

                 ^

% kotlin hello.jar 

    Hello World!