July 2016
Beginner to intermediate
776 pages
17h 26m
Korean
Content preview from 프로그래밍 스칼라: 실용적인 스칼라 활용법을 익히는 가장 확실한 실전 바이블 (2.11.x 버전 기반)
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702
4
부
고급 주제 및 실전 응용
필드가 변경 불가능하기 때문에 세터 메서드가 없다. 반면, 원래의
Complex
를 디컴파일해보면
real
( )
과
imaginary
( )
메서드만 볼 수 있다. 따라서 여러분이
BeanProperty
애노테이션을
사용하더라도 일반적인 필드 읽기 메서드와 선택적인 쓰기 메서드 (쓰기 가능한 필드의 경우)
도 여전히 사용할 수 있다.
22.4
AnyVal
타입과 자바 기본 타입
앞의
Complex
예제에서
Double
필드가 자바의 기본 타입인
double
로 바뀌었음을 알 수 있다.
모든
AnyVal
타입은 그에 대응하는 자바 기본 타입으로 변환된다. 특히
Unit
은
void
로 바뀐다.
22.5
자바 코드로 변환한 스칼라 이름
스칼라는 다양한 식별자를 허용한다. 예를 들어 바이트 코드에서 식별자로 사용할 수 없는
*
,
<
등의 연산자 문자를 식별자에 사용할 수 있다. 따라서 이런 문자는
JVM
의 식별자 규칙을 만족
하는 문자들로 인코딩 (즉, ‘맹글
mangle
’ )된다. 이를 [표
22
-
1
]에 정리했다.
표
22-1
연산자문자인코딩
연산자 인코딩 연산자 인코딩 연산자 인코딩 연산자 인코딩
=
$
eq
>
$
greater
<
$
less
+
$
plus
-
$
minus
* $
times
/ $
div
\ $
bslash
|
$
bar
! $
bang
? $
qmark
:
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.