Copying Directories

[Richard West]

Hi everyone,

I am trying to copy directories from one place to another in a
platform independent way. You see the directory i have contains some files in it as well as other directories. Basically this directory also has sub-directories.

Usually when i am copying an array of files this is what i usually do

void copy(File[] src, File[] dst) throws IOException 
{
i = 0;
 
for(i=0;i<src.length;i++)
{
InputStream in = new FileInputStream(src[i]);
OutputStream out = new FileOutputStream(dst[i]);
 
byte[] buf = new byte[1024];
int len = 0;
        
while ((len = in.read(buf)) > 0) 
{
out.write(buf, 0, len);
}
 
in.close();
out.close();
}
 
}

The above code copies an array of files to the destination. The thing now is that i need to copy an array of directories to a destination. The thing with these directories is that contain sub-directories and i am not able to copy the array of directories.

Basically my question is how do i copy directories that contain files and sub-directories to a destination location?

Any help is greatly appreciated

Thank You

Yours Sincerely

Richard West

[Dave Wingate]

For every File object you process, you need to determine whether it represents a regular file or a directory. To make this decision, use File.isDirectory().

If it's not a directory, you already know what to do. If it is a directory, you'll need to call File.listFiles() to get an array of File objects contained in the directory.

Note that you should probably be writing a recursive method:
1) base case is that File is a regular file
2) recursive case is when File represents a directory

[marc weber]

See this thread...

https://coderanch.com/t/400056/java/java/Search-FIle-System-Pattern-Match

[Jesper de Jong]

You've asked this question on at least 4 different Java forums on Internet. I've already posted my answer on 2 of them.

[peter wooster]

Originally posted by Jesper de Jong:
You've asked this question on at least 4 different Java forums on Internet. I've already posted my answer on 2 of them.

It appears that the Sun forum admins just deleted Richard's thread on this topic there after his being flamed by the regulars for cross-posting.

Note to the Bartenders:
This person's name is Richard West, but I suspect that using the name West Richard is a violation of the naming policy.