How to go through folders and then write every file within those folders?

Question

How to go through folders and then write every file within those folders? If there is a folder within a folder we need to go through that first and then get back to the older directory.

What do you mean with "write every file"? What have you tried? — ddmps, Mar 30 '13 at 16:14
Try with a recursive method that uses [`File#listFiles`](http://docs.oracle.com/javase/7/docs/api/java/io/File.html#listFiles()) and [`File#isDirectory`](http://docs.oracle.com/javase/7/docs/api/java/io/File.html#isDirectory()). Come back when you have a real question. — Luiggi Mendoza, Mar 30 '13 at 16:16
possible duplicate of [Recursively list files in Java](http://stackoverflow.com/questions/2056221/recursively-list-files-in-java) — Rob Hruska, Mar 30 '13 at 18:08

Boris the Spider · Answer 1 · 2013-03-30T16:27:10.990

1

You just need to call a recursive function:

public void writeStuff(final File file) {
    if(file.isDirectory()) {
        for(final File childFile : file.listFiles()) {
            writeStuff(childFile);
        }
    } else {
        //do stuff with file
    }
}

edited Mar 30 '13 at 16:27

answered Mar 30 '13 at 16:18

Boris the Spider

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How about `else {` before the `// do stuff ` comment? – Martin Wilson Mar 30 '13 at 16:25
@MartinWilson fair point. – Boris the Spider Mar 30 '13 at 16:27
This is already covered in an answer on possible duplicate: [Recursively list files in Java](http://stackoverflow.com/questions/2056221/recursively-list-files-in-java) – Luiggi Mendoza Mar 30 '13 at 16:28

score 0 · Answer 2 · answered Mar 30 '13 at 16:54

0

Oracle provides a tutorial based on the FileVisitor interface that explains how one can go by.

answered Mar 30 '13 at 16:54

matsev

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How to go through folders and then write every file within those folders?

2 Answers2