๐™‡๐™ž๐™จ๐™ฉ ๊ฐ’ ์ˆ˜์ •

uuuouuoยท2022๋…„ 6์›” 8์ผ
0
post-thumbnail

๐Ÿ“ List ๊ฐ’ ๋ณ€๊ฒฝ


โœ” set(ํ•ด๋‹น index, ๋ณ€๊ฒฝํ•˜๊ณ  ์‹ถ์€ ๊ฐ’)

List<String> list = new ArrayList<>(Arrays.asList("A", "B", "C"));
list.set(1, "D");
System.out.println(list); // ์ถœ๋ ฅ: A, D, C

โœ” indexOf(๋ณ€๊ฒฝํ•˜๊ณ  ์‹ถ์€ ๊ฐ’)

List<String> list = new ArrayList<>(Arrays.asList("A", "B", "C"));
list.set(list.indexOf("A"), "O");
System.out.println(list); // ์ถœ๋ ฅ: O, B, C

0๊ฐœ์˜ ๋Œ“๊ธ€