How to read all files in a folder from Java

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How to read all the files in a folder through Java?
Dec 30, 2020 in Java by Rajiv
• 8,880 points
42 views

1 answer to this question.

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public void listFilesForFolder(final File folder) {
    for (final File fileEntry : folder.listFiles()) {
        if (fileEntry.isDirectory()) {
            listFilesForFolder(fileEntry);
        } else {
            System.out.println(fileEntry.getName());
        }
    }
}

final File folder = new File("/home/you/Desktop");
listFilesForFolder(folder);

Files. walk API is available from Java 8.

try (Stream<Path> paths = Files.walk(Paths.get("/home/you/Desktop"))) {
    paths
        .filter(Files::isRegularFile)
        .forEach(System.out::println);
} 

The example uses the try-with-resources pattern recommended in the API guide. It ensures that no matter the circumstances the stream will be closed.

answered Dec 30, 2020 by Gitika
• 65,870 points

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