How to copy a file with subdirectory tree

Question

The output for the code will copy a .doc file from c:/copy to c:/test. How am I able to copy a tree directory. For example from c:/copy/1.doc, c:/copy/tutor/2.doc to c:/test/1.doc, c:/test/tutor/2.doc?
import java.io.*;
import java.util.*;
public class DocCapture {
    public static void main(String [] args) throws IOException{
        List<File> javaFiles = new ArrayList<File>();
        File topDir = new File ("C:/Copy");
        if (topDir.isDirectory())
            javaFiles = getFiles(topDir);
        System.out.printf("Found %d js files is directory %s and its sub-directories. ",javaFiles.size(), topDir.getName());
        System.setOut(new PrintStream(new FileOutputStream ("C:/Copy/Location.txt")));
        for (File f : javaFiles)
            System.out.println("JSMinifier " + f.getPath() + " " + f.getPath() + " NOUI");
    private static List<File> getFiles (File dir)
        List<File> fileList = new ArrayList<File>();
        File [] files = dir.listFiles();
        for (int i = 0; i<files.length; i++)        {
            if(files.isDirectory())
fileList.addAll(getFiles(files[i]));
else if(files[i].getName().endsWith(".doc"))
fileList.add(files[i]);
String fileName = files[i].getName();
String name = "";
String ext = "";
try
name = fileName.substring(0, fileName.indexOf("."));
ext = fileName.substring(fileName.lastIndexOf("."), fileName.length());
if (ext.equals(".doc")) copy(files[i], new File("C:/Test/" + name + ext));
catch (IndexOutOfBoundsException e){
System.out.println(fileName + " has no extension");
return fileList;
public static void copy (File src, File dst){
try
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dst);
byte [] buf = new byte [1024];
int len;
while ((len = in.read(buf))>0)
out.write(buf, 0, len);
in.close();
out.close();
System.out.println("File copied"+src.getPath()+dst.getPath());
catch (IOException e){
e.printStackTrace();

Answer 1

To copy source directory D to target directory D' recursively:
  For every plain file in D
    copy that file to D'
  For every directory D2 in D
    recursively copy D2 to its equivalent path D2' using this algorthm