Snapshot X100V enum Java tour of scala 함수형언어 스칼라 Scala refactoring Homebrew socks5 scala type 스칼라 형변환 스칼라독학 servicelocatorfactorybean switch 제거 enum interface enum abstract java 상수 package manager for mac homebrew formula homebrew upgrade homebrew update webflux homebrew cask SPRING5 스칼라입문 스칼라 타입 springboot netty Pw Functional HttpClient Else ID coffee proxy IF Spring