Java 8: Copy directory recursively?

Question

I see that Java 8 has significantly cleaned up reading the contents of a file into a String:

String contents = new String(Files.readAllBytes(Paths.get(new URI(so         


        

Answer 1

and one more version:

static void copyFolder(File src, File dest){
    // checks
    if(src==null || dest==null)
        return;
    if(!src.isDirectory())
        return;
    if(dest.exists()){
        if(!dest.isDirectory()){
            //System.out.println("destination not a folder " + dest);
            return;
        }
    } else {
        dest.mkdir();
    }

    if(src.listFiles()==null || src.listFiles().length==0)
        return;

    String strAbsPathSrc = src.getAbsolutePath();
    String strAbsPathDest = dest.getAbsolutePath();

    try {
        Files.walkFileTree(src.toPath(), new SimpleFileVisitor() {
            @Override
            public FileVisitResult visitFile(Path file,
                    BasicFileAttributes attrs) throws IOException {
                File dstFile = new File(strAbsPathDest + file.toAbsolutePath().toString().substring(strAbsPathSrc.length()));
                if(dstFile.exists())
                    return FileVisitResult.CONTINUE;

                if(!dstFile.getParentFile().exists())
                    dstFile.getParentFile().mkdirs();

                //System.out.println(file + " " + dstFile.getAbsolutePath());
                Files.copy(file, dstFile.toPath());

                return FileVisitResult.CONTINUE;
            }
        });

    } catch (IOException e) {
        //e.printStackTrace();
        return;
    }

    return;
}

its code use java8 Files.walkFileTree function.