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Java: Listing The Files Or Subdirectories In A Directory

// Ref: Java Developers Almanac
// http://www.exampledepot.com/egs/java.io/GetFiles.html

    // Example 1

    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

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