Finding largest and smallest using inputStream

Question

I'm having trouble coming up with the logic to find the largest and smallest scores of an input stream. Am I on the write track, hints?
import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
public class Exercise10
     public static void main(String[] args)
          //declare the filenames
          String fileIn = "in.txt";
          String fileOut = "out.txt";
          //use Scanner for input
          Scanner streamIn = null;
          //use PrintWriter for output
          PrintWriter streamOut = null;
          int count = 0;
          double sum = 0;
          double n;
          double large = 0;
          try
               streamIn = new Scanner(new File(fileIn));
               streamOut = new PrintWriter(fileOut);
          catch(FileNotFoundException e)
               System.out.println("Error opening the file "+fileIn+" or "+fileOut+".\n");
               System.exit(0);
          System.out.println("Scores have been outputted to " +fileOut+ ".\n");
          //loop if there is another line in fileIn
          while(streamIn.hasNextInt())
               n = streamIn.nextInt();
               double previous = n;
               if(previous>n)
                    large = previous;
               else
                    large = n;
               //find the largest score in the file
               if(n>= 0 && n<=100)
                    count++;
                    sum = sum + n;
               else
                    streamOut.println("Your score is out of range.");
          //close the stream in
          streamIn.close();
          //write the information
          streamOut.println("There are " +count+" grades in the "+fileIn+ " file.");
          streamOut.println("The total sum of the grades is: "+sum);
          streamOut.println("The average is: "+sum / count);
          streamOut.println("The largest score is: "+large);
          //close the stream out, will not write unless closed.
          streamOut.close();
}Edited by: brandonacoughlin on Nov 12, 2009 8:25 PM

Answer 1

if(n>= 0 && n<=100)
                    //find the largest score in the file
                    if(n>=large)
                              large = n;
                    //find the smallest score in the file
                    else if(n<=small)
                              small = n;
                         }