Read from a textfile and sort scores

Question

Hi!
I'm making a highscore list but I have some issues. How do I read values from a textfile and sort them (highest on the top). I only know how to write and read from the file. But not how to sort the values inside it when I get a new score. I just keep writing at the end of the file all the time.
     public static void writeToFile() throws IOException
          pw = new PrintWriter(new FileWriter(filP,true));
          for(int i = 0; i < 1; i++)
               pw.println(a);
          pw.close();
     public static void highScore() throws IOException
          FileReader    fr = new FileReader(filP);
          BufferedReader    br = new BufferedReader(fr);
          String    lasa = br.readLine();
          while(lasa != null)
               out.println(lasa);
               lasa = br.readLine();
     }Thanks for help!

Answer 1

Thechrismeister wrote:
...I only know how to write and read from the file. But not how to sort the values inside it when I get a new score. I just keep writing at the end of the file all the time. 1. Read the file into a data structure
2. Add the new score into the data structure
3. Sort the data structure
4. Write the data structure back to the file