Binary Output

Question

Hey there, im pretty new to java, and i've stumbled across a problem with one assignment. I need to "Save a ?snapshot? of the situation say every 10 generations in a binary file".
I've tried to use what i know, but if anyone could give me some pointers, that would be great.
this is what i have so far.
thanx
try {
           ObjectOutputStream outputstream =
           new ObjectOutputStream(new FileOutputStream("binaryoutput.dat"));
           outputStream.writeObject(" " + temp + "             " + df.format(score) + " " +gen);
           System.out.println("Numbers written to the file binaryoutput.dat");
           outputStream.close();
        catch(IOException e) {
            System.out.println("Problem with file output.");

Answer 1

the rest is from this part of my code.
   import java.text.*;
   import java.io.ObjectOutputStream;
   import java.io.FileOutputStream;
   import java.io.IOException;
   public class MonkeyGen
      public static void main(String [] args)
         DecimalFormat df = new DecimalFormat("#0.0000"); //Format of the percentag output.
         Genetic m = new Genetic();
         String t = "To be or not to be, that is the question."; //The line in which we need to have as our output.
         System.out.println(t);
         String temp = m.randString(t.length());
         System.out.println(temp);
         String [] slist = new String[10000]; //declaring a new array of 10,000 strings
         double score = 0, tempScore;
         int gen =0;
         while (score < 1.0)
            gen++;
            for (int n=0;n<10000;n++)
               slist[n] = m.permuteString(temp.length(), temp);
               tempScore = m.getScore(slist[n],t);
               if (tempScore > score)
                  score = tempScore;
                  temp = slist[n];
            System.out.println(" " + temp + "             " + df.format(score) + " " +gen); // Prints out the final solution.
         System.out.println("--------------------------------------- "+ gen);im only really following lecture notes and my textbook, both which seem to point to using an ObjectOutputStream.
the problem im really having is the fact that it's not compiling