HashSet 예제

java

HashSet Example

HashSet 예제

- Set 계열의 특징 : 중복 저장하지 않으며 저장 순서 없음

import java.util.HashSet;; public class dailyCode { public static void main(String[] args){ HashSet set = new HashSet(); HashSet setCopy = new HashSet(); set.add("one");//autoboxing set.add("one"); set.add("two"); set.add("one"); set.add(new String("three"));//Wrapper class set.add(1); set.add(100.5); System.out.println("set : " + set.toString()); setCopy.addAll(set); System.out.println("setCopy : " + setCopy.toString()); set.remove("one"); System.out.println("set : " + set.toString()); setCopy.clear(); System.out.println("setCopy : " + setCopy.toString()); } }