[Solved] Trying to Write Multiple Files at Once – Java

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Tangental “answer” follows. (This should also print out contents to the files, unless I’m missing something very basic.)

Whenever there is a set of variables in the form xN (e.g. l2, l3, l22), they should usually be replaced with a List collection type such as an ArrayList.

This is just an example to show how can be reduce duplication and fixed bounds:

int MAX_WORD_LEN = 22; // making this dynamic left as an excercise
List<PrintWriter> writers = new ArrayList<PrintWriter>();

for (int i = 0; i <= MAX_WORD_LEN; i++) {
    PrintWriter w = new PrintWriter("dictionary_length" + i + ".txt", "UTF-8");
    writers.Add(w);
}

String line;
while ((line = tr.readLine()) != null) {
   int len = line.length();
   if (len < writers.size()) {
       writers.get(len).println(line);
   }
}

for (PrintWriter w : writers) {
    w.close();
}

Slight adjustments can be made to not create a “0” or “1” file.

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solved Trying to Write Multiple Files at Once – Java