๐ฉ๐ปํ๋ก๊ทธ๋๋ฐ&DB/Java
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[JAVA] LinkedList&Collections ํด๋์ค ํ์ฉ ์์
LinkedList&Collections ํด๋์ค ํ์ฉ ์์ ์ถ๊ฐ์ ์ผ๋ก Iterator ํ์ฉํด๋ณด๊ธฐ import java.util.Collections; import java.util.Iterator; import java.util.LinkedList; public class LinkedListEx { static void printList(LinkedList list) { Iterator it = list.iterator(); while(it.hasNext()) { System.out.print(it.next()+" "); } System.out.println(""); } public static void main(String args[]) { LinkedList myList = new LinkedList..
2023.11.17
๐ฉ๐ปํ๋ก๊ทธ๋๋ฐ&DB/Java

[JAVA] HashMap์ ์ฌ์ฉํ ์์ฉ ๋ฌธ์
https://hyane.tistory.com/530 [JAVA] StringTokenizer, StringBuffer๋ฅผ ์ด์ฉํ ์์ * ์๋์ ๊ฒฐ๊ณผ๊ฐ ๋์ค๋๋ก 1~4์ ์กฐ๊ฑด์ ๋ณด๊ณ paring๊ณผ StrAppend๋ฅผ ์์ฑํ์ธ์. (ํํธ: parsing-StringTokenizer์ด์ฉ, StrAppend-StringBuffer์ด์ฉ, ๋ฌธ์์ด๊ณผ ์ซ์๋ณํ์๋ Wrapperํด๋์ค ์ด์ฉ) Student ํด๋์ค - ๋ฉค๋ฒ๋ณ hyane.tistory.com ↑๊ธฐ๋ณธ ์ฝ๋ 1. ํด์๋งต(key: ํ๋ฒ, value: Student ๊ฐ์ฒด)์์ฑ static HashMap makeHashMap(Student[] s) 2. Iterator๋ฅผ ์ด์ฉํ์ฌ ํด์๋งต ์ถ๋ ฅ static void printHashMap(HashMap h) 3. ํน..
2023.11.16
๐ฉ๐ปํ๋ก๊ทธ๋๋ฐ&DB/Java