Deleting duplicate lines in a file using Java

Question

As part of a project I\'m working on, I\'d like to clean up a file I generate of duplicate line entries. These duplicates often won\'t occur near each other, however. I came

Answer 1

A similar approach

public void stripDuplicatesFromFile(String filename) {
    IOUtils.writeLines(
        new LinkedHashSet(IOUtils.readLines(new FileInputStream(filename)),
        "\n", new FileOutputStream(filename + ".uniq"));
}