Question

I have a small code wich can return the list of files under any directory.

What I need to do is get the Directories and Files under the first given directory.

This is the code I’m using.

    File dir = new File("C:/myDocument/myFolder");

    String[] children = dir.list();
    if (children == null) {

    } else {
        for (int i=0; i<children.length; i++) {

            String filename = children[i];
            System.out.println(filename);
        }
    }

Another thing is when I select the path from Windows 7, I get this C:\myFolder\myFolder.
If I use this path in Java I get this error Invalide Escape sequence
Do I have to change it to C:/myDocument/myFolder to get it work.

Help.

Thanks

Answer 1

Yes, forward slashes are fine. They get normalized to the OS-dependent separator.

What the error tells you is that \m is an invalid escape sequence. Each backward slash tries to escape the following character. So if you need backward slashes in a string, use a double slash: "c:\\myDocuments\\myFolder"

In order to get directories and files, you use .listFiles() and then file.isDirectory() to check if it’s a directory.