December 2016
Beginner to intermediate
173 pages
3h 43m
Korean
Content preview from 그레이들 레시피: 안드로이드 빌드 시스템 Gradle 실무 안내서
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155
APPENDIX A -
그루비 둘러보기
String s
=
'
this is a string
'
assert s
+
'
and more
'
==
'
this is a string and more
'
assert s
-
'
is
'
==
'
th is a string
'
assert s
-
'
is
'
-
'
is
'
==
'
th a string
'
Date now
=
new Date
()
Date tomorrow
=
now
+
1
//
Date
.
plus
(
Integer
)
assert tomorrow
-
1
==
now
//
Date
.
minus
(
Integer
)
그루비에는 지수함수 연산자
(
**
)
도 있습니다. 자바에서는 두 참조가 동일한 객체를 가리키는
지를
==
연산자가 검사하는데, 그루비에서는
equals
메서드를 호출합니다. 참조가 동일한지
알려면
is
메서드를 사용합니다.
A.4
컬렉션
그루비에는 기본으로 제공하는 컬렉션이 있습니다. 대괄호
(
[]
)
를 사용하고 각 값을 콤마
(
,
)
로
구분하면
ArrayList
를 만들 수 있습니다.
as
연산자를 호출하면 컬렉션을 다른 타입으로 변
환할 수 있습니다. 컬렉션에도 연산자 오버로딩을 사용할 수 있는데, [예제
A
-
8
]에는
plus
와
minus
,
multiply
같은 예가 나와 있습니다.
예제
A-8
컬렉션 예제와 메서드들
def nums
=
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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.