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  1. #1
    zoe is offline Member
    Join Date
    Jul 2007
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    Default Help with File in java

    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.

  2. #2
    Seemster is offline Member
    Join Date
    Jul 2007
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    Java 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);
    Last edited by levent; 07-26-2007 at 07:51 PM. Reason: Code placed inside [code] tag for better readibility.

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