add builder pattern

sample-kotlin / sample01

Browse code add builder pattern master
1 parent d22b30a commit 99e6d3637ead95b6c79858e8dc00a1c83c9153cc yhornisse authored on 18 Nov 2020

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Ignore Space Show notes View builder.kt 0 → 100644
data class Hoge( val id:Int, val name:String) { class HogeBuilder() { var id:Int? = null var name:String? = null fun build() : Hoge = Hoge( id = requireNotNull(id), name = requireNotNull(name) ) } } fun main(args: Array<String>) { var builder = Hoge.HogeBuilder() builder.id = 1 builder.name = "hoge" var e:Hoge = builder.build() println(e.id) println(e.name) }

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