Mine

/*
 * Write an application that reads daily temperatures for 12 months and allows
 * the user to get statistics. Support at least three options: monthly average
 * of a given month, yearly average, and lowest and highest temperatures of a
 * given month. Use a text file to store temperatures. A line in the text file
 * contains daily temperatures for one month. The first line in the text file
 * contains temperatures for January; the second line, those for February; and
 * so forth. Using StringTokenizer to parse a line into temperatures of type
 * float. For a data structure, consider using either an array of Month or a
 * two-dimensional array of float. Month is a class you define yourself.
 */

import java.io.*;
import java.util.*;
import java.text.*;

class homeWork6{
    
    public static void main( String[] args) throws IOException{
        
        File inFile = new File("templog.txt");
        FileReader fileReader = new FileReader(inFile);
        BufferedReader bufReader = new BufferedReader(fileReader);
        
        DecimalFormat df = new DecimalFormat("0.00");
        
        for(int i = 0;i < 12; i++){
            
            String str = bufReader.readLine();
            StringTokenizer parser = new StringTokenizer(str);
            
            int count = 0;
            float[] days = new float[31];
            
            while(parser.hasMoreTokens()){
                //System.out.println(parser.nextToken());
                
                String next = parser.nextToken();
                //System.out.println(next);
                
                float newvar = Float.parseFloat(next);
                //System.out.println(newvar);
                
                days [count]= newvar;
                count++;
                
            }
            
            float monthlyAverage;
            float sum = 0;
            for(int j = 0; j < 31; j++){
                
                //System.out.println(days[j] + " Sum is: " + df.format(sum));
                sum += days[j];
                //System.out.println("Sum is: " + sum);
                
            }
            
            
            monthlyAverage = sum / 31;
            //System.out.println("Sum is: " + df.format(sum) + " || " + "Monthly Average is: " + df.format(monthlyAverage));
            //System.out.println("");
        }
        
        bufReader.close();
    }
}