Help creating method 1. getAverageMileage A. Calculates the average mileage for

ID: 3688949 • Letter: H

Question

Help creating method

1. getAverageMileage

A. Calculates the average mileage for each vehicle in the collection

1. Calculate the sum of the mileage for each vehicle in the collection

2. Divide by the total number of vehicles in the collection

3. Return the average mileage of the vehicles in the collection

This is the input.txt file

the 6th value from the left is the vehicles mieage

5,Honda,CR-V,2008,1,121990,true,10000
4,Toyota,Sienna,2004,1,180897,true,8000
6,GMC,Sierra,2006,1,152254,false,2500
5,GMC,Terrain,2014,0,34322,true,40000
4,Kia,Sedona,2000,1,243986,false,24000
3,Nissan,Versa,2006,2,150702,4,2500
2,Toyota,Yaris,2007,0,136382,5,2000
3,Honda,Accord,2011,1,77659,2,15000
3,Honda,Civic,2009,2,106098,4,9000
4,Dodge,Grand Caravan,2015,1,15797,true,36000
2,Hyundai,Accent,2008,2,123536,5,4000
4,Toyota,Sienna,2004,2,180443,false,8000
3,Cadillac,ATS,2003,1,195948,4,9000
5,GMC,Acadia,2001,1,229434,false,25000
6,Ford,F-150,2001,2,227724,false,30000
1,BMW,4 Series,2015,1,17503,2,9000
2,Mazda,Mazda3,2004,1,183402,3,4000
4,Kia,Sedona,2004,2,184749,true,8000
5,Jeep,Grand Cherokee,2010,0,90695,true,20000
6,Chevrolet,Colorado,2007,0,135546,true,6000
3,Kia,Optima,2008,1,121675,2,6000
5,Mazda,CX-5,2009,1,107149,false,15000
1,Audi,A3,2005,0,169855,4,1000
1,Chevrolet,Corvette,2015,1,15297,4,9000
1,Porsche,911,2013,1,46244,4,7000
4,Honda,Odyssey,2001,0,225805,false,20000
5,Ford,Escape,2006,1,151914,true,2500
5,Ford,Explorer,2002,2,211907,true,20000
3,Toyota,Camry,2009,2,108349,2,9000
2,Chevrolet,Sonic,2002,2,212737,5,8000
6,Dodge,RAM,2000,2,243415,false,36000
4,Toyota,Sienna,2006,1,152657,false,2500
4,Honda,Odyssey,2006,0,152264,true,2500
1,Chevrolet,Camaro,2012,0,64060,2,6000
2,MINI,Cooper,2000,1,242939,3,12000
6,Toyota,Tundra,2009,1,108435,true,18000
1,Volkswagon,Beetle,2006,1,152605,2,2500
5,Jeep,Wrangler,2014,0,31781,false,40000
3,Ford,Focus,2003,1,196477,2,9000
5,Ford,Explorer,2004,0,182115,false,10000
6,Toyota,Tacoma,2014,2,34505,false,48000
4,Chrysler,Town & Country,2013,0,45523,false,28000
1,Ford,Mustang,2005,1,168739,4,1000
4,Dodge,Grand Caravan,2006,1,152214,true,2500
2,Toyota,Prius,2008,2,122021,3,4000
6,Toyota,Tacoma,2012,2,64711,false,36000
2,FIAT,500,2002,2,210019,3,8000
5,Honda,CR-V,2003,2,199291,false,15000
5,Toyota,Highlander,2012,0,64943,false,30000
4,Nissan,Quest,2009,1,109139,true,12000

Explanation / Answer

import java.io.File;
import java.util.Scanner;

/**
* @author Srinivas Palli
*
*/
public class VehicleMilage {

   /**
   * method to calculate average mileage of the vehicles in the file
   *
   * @return
   */
   public static double getAverageMileage() {

       double averageMilage = 0.0;
       Scanner scanner = null;
       try {

           int sumOfMilages = 0;
           int totalNoOfVehicles = 0;
           scanner = new Scanner(new File("input.txt"));
           while (scanner.hasNext()) {

               String line = scanner.nextLine();
               String lineArr[] = line.split(",");
               sumOfMilages += Integer.parseInt(lineArr[5]);

totalNoOfVehicles++;

}

           averageMilage = (double) sumOfMilages / (double) totalNoOfVehicles;
       } catch (Exception e) {
           // TODO: handle exception
       } finally {

scanner.close();

}

return averageMilage;

}

   /**
   * @param args
   */
   public static void main(String[] args) {

       System.out
               .println("Average mileage of the vehicles in the collection :"
                       + getAverageMileage());
   }
}

OUTPUT:

Average mileage of the vehicles in the collection :137157.04

input.txt

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Help creating method 1. getAverageMileage A. Calculates the average mileage for

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