Java - Read all .txt files in folder

Question

Let\'s say, I have a folder called maps and inside maps I have map1.txt, map2.txt, and map3.txt. How can I u

Answer 1

I would take @Andrew White answer (+1 BTW) one step further, and suggest you would use FileNameFilter to list only relevant files:

FilenameFilter filter = new FilenameFilter() {
    public boolean accept(File dir, String name) {
        return name.endsWith(".txt");
    }
};

File folder = new File("/path/to/files");
File[] listOfFiles = folder.listFiles(filter);

for (int i = 0; i < listOfFiles.length; i++) {
    File file = listOfFiles[i];
    String content = FileUtils.readFileToString(file);
    // do something with the file
}