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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111
2
장
입력은 조금만, 일은 더 많이
2.8
리터럴 값
앞에서 이미 몇 가지 리터럴 값
literal
value
을 살펴봤다. 예를 들어
val
book
= "
Programming
Scala
"
는
book
이라는
val
을
String
타입의 리터럴로 초기화하며,
(
s
:
String
) =
>
s
.
toUpperCase
는 함수 리터럴이다. 스칼라의 리터럴 지원을 전부 살펴보자.
2.8.1
정수 리터럴
정수 리터럴은 십진수,
16
진수, 또는
8
진수 표현이 있다. 자세한 내용을 [표
2
-
2
]에 정리했다.
표
2-2
정수 리터럴
4
종류 형식 예
10
진수
0
또는
0
이 아닌 숫자 다음에
0
개 또는 그 이상의 숫자(
0
-
9
)가 위치함
0
,
1
,
321
16
진수
0x
다음에
1
개 이상의
16
진 숫자(
0
-
9
,
A
-
F
,
a
-
f
)가 위치함
0xFF
,
0x1a3b
8
진수
4
0
다음에
1
개 이상의
8
진 숫자(
0
-
7
)가 위치함
013
,
077
리터럴에
-
기호를 붙이면 음수를 표현한다.
Long
리터럴의 경우,
Long
으로 선언된 변수에 대입하는 경우가 아니라면 맨 뒤에
L
이나
l
을 붙
여야 한다. 그렇지 않으면
Int
타입으로 추론된다. 정수 리터럴의 정상값의 범위는 값을 대입할
변수의 타입에 따라 결정된다. [표
2
-
3
]은 이런 범위를 보여준다. 이때 양끝도 범위에 포함된다.
표
2-3
정수 리터럴의 허용 ...
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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.
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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.