public class Test {
public static void main(String[] args) {
File f = new File("C:/java");
listFileTree(f,0);
}
private static void listFileTree(File f,int level) {
String preStr = "";
for(int i = 0; i < level; i++) {
preStr += " ";
File[] childs = f.listFiles();
for(int i = 0; i < childs.length; i++) {
System.out.println(preStr + childs[i].getName());
if(childs[i].isDirectory()) {
listFileTree(childs[i],level + 1);
}
}
}
}
摘自 Yours风之恋