Sorting a text file in Java

Question

I have a text file with a list of words which I need to sort in alphabetical order using Java. The words are located on seperate lines.

How would I go about this, R

Answer 1

Here is an example using Collections sort:

public static void sortFile() throws IOException
{     
    FileReader fileReader = new FileReader("C:\\words.txt");
    BufferedReader bufferedReader = new BufferedReader(fileReader);
    List lines = new ArrayList();
    String line = null;
    while ((line = bufferedReader.readLine()) != null) {
        lines.add(line);
    }
    bufferedReader.close();

    Collections.sort(lines, Collator.getInstance());

    FileWriter writer = new FileWriter("C:\\wordsnew.txt"); 
    for(String str: lines) {
      writer.write(str + "\r\n");
    }
    writer.close();
}

You can also use your own collation like this:

Locale lithuanian = new Locale("lt_LT");
Collator lithuanianCollator = Collator.getInstance(lithuanian);