Help with File in java

[zoe]

I am trying to view files in a given directory on the computer inside a java program.
Basically, when given a string such as "C:\My Documents", how would i display the names of the files inside that directory?
Furthermore how would I tell if those files are directories themselves or other types of files?
Sorry I do not have any code to post but I am digging through the api docs to try and find the right classes to use and having no luck. I only need ideas for classes to use if anyone has any ideas.
Thanks

[Seemster]

Code:

File dir = new File("directoryName");
    
    String[] children = dir.list();
    if (children == null) {
        // Either dir does not exist or is not a directory
    } else {
        for (int i=0; i<children.length; i++) {
            // Get filename of file or directory
            String filename = children[i];
        }
    }
    
    // It is also possible to filter the list of returned files.
    // This example does not return any files that start with `.'.
    FilenameFilter filter = new FilenameFilter() {
        public boolean accept(File dir, String name) {
            return !name.startsWith(".");
        }
    };
    children = dir.list(filter);
    
    
    // The list of files can also be retrieved as File objects
    File[] files = dir.listFiles();
    
    // This filter only returns directories
    FileFilter fileFilter = new FileFilter() {
        public boolean accept(File file) {
            return file.isDirectory();
        }
    };
    files = dir.listFiles(fileFilter);