박민규님의 게시글

질문&답변

전체 실행하는데 오류가 안납니다

package hi.hellospring.repository ; import hi.hellospring.domain.Member ; import java.util.HashMap ; import java.util.* ; import java.util.Map ; import java.util.Optional ; public class MemoryMemberRepository implements MemberRepository{ private Map , Member> store = new HashMap () ; private static long sequence = 0L ; @Override public Member save (Member member) { member.setId(++ sequence ) ; store .put(member.getId() , member) ; return member ; } @Override public Optional findbyId (Long id) { return Optional. ofNullable ( store .get(id)) ; // 널이 있어도 일단 실행 } @Override public Optional findbyName (String name) { return store .values().stream().filter(member -> member.getName().equals( name )).findAny() ; // 람다식 공부해야함 / findany 하나라도 있으면 찾음 } @Override public List findAll () { return new ArrayList ( store .values()) ; } } 입니다