[JAVA] 디렉토리 트리형태로 구현하기
* FileNode.java 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354package kr.sys4u.test; import java.io.File;import java.util.ArrayList;import java.util.Collection;import java.util.List; public class FileNode { private final File file; private final List children; public FileNode(final File file) { if (file == null) { throw new IllegalArgumentExce..