Iterator (반복자) An Iterator is an object that can be used to loop through collections, like ArrayList and HashSet. It is called an "iterator" because "iterating" is the technical term for looping. To use an Iterator, you must import it from the java.util package. Iterator (반복자)는 ArrayList나, HashSet 같은 컬렉션을 순회할 때 (looping) 사용될 수 있는 객체입니다. "looping"의 기술적인 용어가 "iterating" 이기 때문에 해당 객..
