Rainfall Statistics Write a program that will input rainfall amounts for each mo

Question

Rainfall Statistics

Write a program that will input rainfall amounts for each month in a year from a file. Get the filename from the user. Use an array to store the input from the file. Print out a table showing the rainfall amount for each of the months in the year, with the month name and the rainfall amount, as well as how much above or below average the rainfall was for that month.

Sample Output:

Enter the filename: rainfall2016.txt
Monthly Rainfall Amounts
for the year 2016
Merced County
Average for year: 1.44
-------------------------------
Month   Rain   Deviation
-------------------------------
JAN 5.19 3.75
FEB 0.36 -1.08
MAR 4.28 2.84
APR 3.10 1.66
MAY 0.04 -1.40
JUN 0.00 -1.44
JUL 0.00 -1.44
AUG 0.00 -1.44
SEP 0.00 -1.44
OCT 0.32 -1.12
NOV 1.13 -0.31
DEC 2.82 1.38

Use Java!!!!

Explanation / Answer

rainfallStats.txt(Save this file under D Drive.Then the path of the file pointing to it is D: ainfallStats.txt )

5.19
0.36
4.28
3.10
0.04
0.00
0.00
0.00
0.00
0.32
1.13
2.82

____________________

RainfallStatistics.java

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

public class RainfallStatistics {

   public static void main(String[] args) throws Exception {

       // Declaring variables
       String fileName;
       double sum = 0;
       double avg = 0.0;

       // creating an double array to hold rainfall stats
       double rainfallArr[] = new double[12];
       Scanner sc = null;
       sc = new Scanner(System.in);

       // Sting array which holds names of months
       String months[] = { "JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL",
               "AUG", "SEP", "OCT", "NOV", "DEC" };

       // Getting the filename entered by the user
       System.out.print("Enter the Filename :");
       fileName = sc.nextLine();

       // Opening the file
       sc = new Scanner(new File(fileName));

       int i = 0;

       // getting the data from the file and populating those values into array
       while (sc.hasNext()) {
           rainfallArr[i] = sc.nextDouble();

           sum += rainfallArr[i];

           i++;

       }
       sc.close();
       // calculating the average
       avg = sum / i;

       // Displaying the result
       System.out.printf("Average for year :%.2f ", avg);

       System.out.println("Monthly Rainfall Amounts for the year 2016");

       System.out.printf("Merced Country Average for the year :%.2 f", avg);

       System.out.println("-------------------");
       System.out.println("Month Rain Deviation");
       System.out.println("-------------------");
       for (int k = 0; k < i; k++) {
           System.out.printf("%s %.2f %.2f ", months[k], rainfallArr[k],
                   (rainfallArr[k] - avg));
       }

   }

}

______________________

Output:

Enter the Filename :D: ainfallStats.txt
Average for year :1.44
Monthly Rainfall Amounts for the year 2016
Merced Country Average for the year :1.44
-------------------
Month   Rain   Deviation
-------------------
JAN   5.19   3.75
FEB   0.36   -1.08
MAR   4.28   2.84
APR   3.10   1.66
MAY   0.04   -1.40
JUN   0.00   -1.44
JUL   0.00   -1.44
AUG   0.00   -1.44
SEP   0.00   -1.44
OCT   0.32   -1.12
NOV   1.13   -0.31
DEC   2.82   1.38

_____________Thank You

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