Writing a report file with specific information

Question

Hi, all:
I need to write a text file with specific information in it. I'm going to copy it into Excel, so the easier the format, the better (perhaps CSV format?). I've never done this before, so here's the method I need to capture the information from:
     public void step() {
          greenColorStorage = new ArrayList();
          magentaColorStorage = new ArrayList();
          System.out.println( "==> Model step " + getTickCount() );// Checking step #
          for (int i = 0; i < soldierList.size (); i++) {
               Soldier s = (Soldier) soldierList.get (i);
               s.step();
          Collections.shuffle(soldierList);
          System.out.println("Shuffling collection now.");
          dsurf.updateDisplay ();
          System.out.println("Model.step() finished.");
          for (int i = 0; i < soldierList.size (); i++) {
               Soldier s = (Soldier) soldierList.get (i);
               if (s.getMyColor() == Color.green ) {
                    greenColorStorage.add(s);
               if (s.getMyColor() == Color.magenta ) {
                    magentaColorStorage.add(s);
          if (magentaColorStorage.size() == 0 || greenColorStorage.size() == 0 ) {
               stop();
     }In this method, I need to capture this information: There are soldiers on the Green team and on the Magenta team. I need to know how many there are originally, how many in this time step, at what time step the model stops, and how many of the winning color team are left when the model stops. How do I do this? If you can point me to a specific thread that shows how to write a report file like this, I'd be grateful, since I couldn't find one when I searched. Otherwise, I'd be grateful for examples. I'm in the middle of doing some research, and I have the feeling that I'll need to write report files in the future, so if you'd explain any code you provide, I would be quite grateful--I need to understand what I'm doing as well as simply using your code so that I can really learn what I'm doing when I do this again. Thanks very much!

Answer 1

FileOutputStream
public FileOutputStream(File file,
                        boolean append)
                 throws FileNotFoundException
Creates a file output stream to write to the file represented by the specified File object.
If the second argument is true, then bytes will be written to the end of the file
rather than the beginning.
*/