/**

 * This program analyzes temperature data for Salem, OR, 1928-2005

 * The data was downloaded from http://www.nws.noaa.gov/climate/local_data.php?wfo=pqr

 * The daily temperatures were averaged within each month to give the values in the 

 * data file aveMonthlyTemps.txt

 */

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;

import java.util.Arrays;



public class TemperaturesSkeleton {

  

  public static int[] year = new int[934];

  public static int[] month = new int[934];

  public static float[] minTemp = new float[934];

  public static float[] maxTemp = new float[934];

  public static String[] monthNames = {"","Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

  

  public static void main(String[] args) {     

    readFile("aveMonthlyTemps.txt");   

    printData();

  }

  

 

  /** Print out all of the data

    */

  public static void printData() 

  {

    for (int i=0;i< minTemp.length;i++) {

        System.out.println(monthNames[month[i]] + " " + year[i] +  "     " +

                              "ave min/max temps: (" + minTemp[i] + " , " + maxTemp[i] +")");

    }

  }

  

  /** Read in the data from the file.  Assumes each line of the file, e.g. 

    *               1928 1TX 45.1         // year 1928 January max temp

    *               1928 1TN 34           // year 1928 January min temp

    * has the form:

    *   ASCII POSITION       DESCRIPTION

    *       0-3          year (e.g. 1928)

    *       4-5          month (1, 2, .... 12) 

    *        6           T, indicates temperature (not read)

    *        7           X or N, indicates maX or miN (each line alternates min and max)

    *       remaining    the temperature (float)

    * Assumes the file is located in the same folder as this java file. 

    * 

    * @param filename the name of the ascii file name

    */

  public static void readFile(String filename)  {

    try {

      File inputFile = new File(filename);

      Scanner in = new Scanner(inputFile);

      

      int cnt = 0;

      while(in.hasNextLine())

      {     

        String line = in.nextLine();

        year[cnt] = Integer.parseInt( line.substring(0,4) );

        month[cnt] = Integer.parseInt( line.substring(4,6).trim() );

        float temp = Float.parseFloat(line.substring(9).trim());

        

        if (line.charAt(7) =='X') {

          maxTemp[cnt] = temp;

          //  System.out.println("year " + year[cnt] + "  month = " + month[cnt] + " max temp = " + maxTemp[cnt]);

        }

        else {

          minTemp[cnt] = temp;

          // System.out.println("year " + year[cnt] + "  month = " + month[cnt] + " min temp = " + minTemp[cnt]);          

          cnt++;

        }

      }

      System.out.println("count = " + cnt);

    } catch (FileNotFoundException e) {

      System.out.println("File not found.");

    }

    

  }

  



}