import java.io.File;
public class FileTree {
public static void main(String[] args) {
File file = new File("d:\\Java\\jdk1.8.0_101");
String str = "|-";
listFile(file, str);
}
private static void listFile(File file, String str) {
File[] listFiles = file.listFiles();
for (File f : listFiles) {
System.out.println(str + f.getName());
if (f.isDirectory()) {
listFile(f, "| " + "|-");
}
}
}
}