๋ชฉ๋ก๋ฉ”์„œ๋“œ์ฐธ์กฐ (1)

DevLog ๐Ÿ˜ถ

[๋ชจ๋˜์ž๋ฐ”์ธ์•ก์…˜] ๋ฉ”์„œ๋“œ ์ฐธ์กฐ : ๋žŒ๋‹ค๋ฅผ ๊ฐ„๊ฒฐํ•˜๊ฒŒ ์‚ฌ์šฉํ•˜๊ธฐ

๐Ÿ’ฌ ๋ชจ๋˜ ์ž๋ฐ” ์ธ ์•ก์…˜ ์ฑ•ํ„ฐ 3์„ ์ฝ๊ณ  ์ •๋ฆฌํ•œ ๊ธ€์ž…๋‹ˆ๋‹ค. โœ”๏ธ ๋ฉ”์„œ๋“œ ์ฐธ์กฐ ๋ฉ”์„œ๋“œ ์ฐธ์กฐ๋ฅผ ์‚ฌ์šฉํ•ด์„œ ๋” ์ฝ”๋“œ๋ฅผ ๊ฐ„๊ฒฐํ•˜๊ฒŒ ๋งŒ๋“ค์–ด๋ณด์ž. // Before inventory.sort((a1, a2) -> a1.getCourse().compareTo(a2.getCourse())); // After inventory.sort(comparing(Crew::getCourse)); ๋ฉ”์„œ๋“œ ์ด๋ฆ„์„ ํ™œ์šฉํ•˜๋Š”, '๋ฉ”์†Œ๋“œ ์ฐธ์กฐ'๋ฅผ ํ™œ์šฉํ•˜๋ฉด ๋žŒ๋‹ค๋ฅผ ๋” ๊ฐ„๊ฒฐํ•˜๊ฒŒ ํ‘œํ˜„ํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ฉ”์„œ๋“œ ์ฐธ์กฐ๋ฅผ ํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ๊ตฌ๋ถ„์ž(::)๋ฅผ ํ™œ์šฉํ•œ๋‹ค. ๐ŸŒฑ ๋ฉ”์„œ๋“œ ์ฐธ์กฐ๋ฅผ ๋งŒ๋“œ๋Š” ๋ฐฉ๋ฒ• 1. ์ •์  ๋ฉ”์„œ๋“œ ์ฐธ์กฐ (args) -> ClassName.staticMethod(args) ==> ClassName::staticMethod 2. ๋‹ค์–‘ํ•œ ํ˜•์‹์˜ ์ธ์Šคํ„ด..