/** This program will keep track of a list of mountains in an array.
 *  The purpose of this program is just to practice a little I/O, calling
 *  constructors and arrays (or ArrayLists).
 */
import java.io.*;
import java.util.*;

public class Driver
{
  public static void main(String [] args) throws IOException
  {
    // We need to do the following:
    // 1.  read the list of mountains from a file called mtn.txt.
    //     Each line of the file has data on one mountain.
    // 2.  create a mountain object with this information
    // 3.  Put this mountain object into an array.
    // Then, once we have all the mountains in the array, we can do
    // some calculations, such as finding tallest/shortest (?)

    BufferedReader in = new BufferedReader(new FileReader("mtn.txt"));

    //Mountain [] mList = new Mountain [];
    ArrayList mList = new ArrayList();
    
    int mNumber = 0;
    while(true)
    {
      String line = in.readLine();
      if (line == null)
	break;

      // At this point, we have one line from the file.
      StringTokenizer tok = new StringTokenizer(line, ",");
      String place = tok.nextToken();
      String name = tok.nextToken();
      int height = Integer.parseInt(tok.nextToken());

      // Need to create an object...
      Mountain m = new Mountain(place, name, height);
      //mList[mNumber] = m;
      mList.add(m);

      ++mNumber;
    }
    System.out.println("The following mountains are over 10,000 feet");

    in.close();

    // Let's print the names of all mountains over 10,000 feet.
    for (int i = 0; i < mList.size(); ++i)
    {
      Mountain m = (Mountain) mList.get(i);
      if (m.getHeight() > 10000)
	System.out.println(m.getName() + " height is " + m.getHeight());
    }

    // Now, let's find the average height of all the mountains.
    int sum = 0;
    for (int i = 0; i < mList.size(); ++i)
    {
      Mountain m = (Mountain) mList.get(i);
      sum += m.getHeight();
    }
    double average = sum / mList.size();

    System.out.printf("\nThe average mountain is %f feet.\n", average);

  }
}