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belljun3395 avatar belljun3395 commented on July 28, 2024

제가 생각하기에 자바 8에서 메서드가 일급값이 되면서 우리가 가져야하는 생각은 "이제 메서드도 전달할 수 있게 되었다." 일꺼 같아요!

책의 예제 File[] hiddenFiles = new File(".").listFiles(File::isHidden);을 보면

listFiles 에 file.isHidden()이라는 메서드가 넘겨진 것을 확인할 수 있어요
이렇게 매개변수로 메서드를 넘길 수 있을 것이다 라는 개념만 인지하고 있으면 다음 장들을 읽을 때 도움 될꺼 같아요!

from javs.

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