JAVA PROGRAM Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage PLEASE FIX AND MODIFY THIS JAVA SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL TEST CASSES PLEASES. RIGHT NOW IT SAYS 0 OUT 3 PASSED. THE PICTURES THAT I PROVIDED PROOF THAT WHEN I UPLOAD IT TO HYPERGRADES IT FAILS TEST CASSES. THANK YOU. import java.io.*; import java.util.Scanner; public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("Please enter the file name: "); while (true) { String fileName = scanner.nextLine(); File file = new File(fileName); if (file.exists() && file.isFile()) { processFile(file); break; // Exit loop if file is found and processed } else { System.out.println("File '" + fileName + "' does not exist.\nPlease enter the file name again: "); } } scanner.close(); } private static void processFile(File file) { try { Scanner fileScanner = new Scanner(file); double total = 0; int count = 0; while (fileScanner.hasNextDouble()) { double number = fileScanner.nextDouble(); total += number; count++; } fileScanner.close(); double average = (count == 0) ? 0 : total / count; System.out.printf("Total: %.3f%n", total); System.out.printf("Average: %.3f%n", average); } catch (FileNotFoundException e) { // This block should never be reached as we checked if the file exists before System.err.println("Unexpected error: " + e.getMessage()); } } } Input1.txt -283.760 -456.167 19.815 -322.301 344.949 -850.533 -672.360 -188.767 646.462 -118.775 808.613 -746.865 -370.432 219.607 -166.298 -508.636 -989.128 -205.020 -928.165 -180.699 300.753 316.036 709.371 -886.860 -585.388 -554.302 -394.801 -970.233 905.941 787.854 -181.240 74.665 802.453 -951.292 -510.656 -203.999 -276.199 -350.575 398.501 -519.799 469.199 592.120 713.424 155.967 585.481 -780.846 387.700 457.806 560.933 -343.916 486.806 -43.184 237.494 191.488 309.275 -64.415 -206.333 -377.696 -409.553 -734.282 -777.221 -318.800 -695.745 40.631 -384.036 -937.134 -380.501 -77.083 756.524 -720.959 -579.412 -215.301 542.097 -402.541 468.721 151.050 573.296 -342.210 758.038 200.691 882.294 8.042 -87.760 634.811 -777.953 767.795 570.716 594.012 596.648 900.010 -370.754 985.007 785.562 -838.952 -71.182 72.845 -500.759 698.946 527.167 1.082 Test Case 1 Please enter the file name: \n double_input1.txtENTER Total: -5,748.583\n Average: -57.486\n Test Case 2 Please enter the file name: \n double_input2.txtENTER Total: 112,546.485\n Average: 56.273\n Test Case 3 Please enter the file name: \n double_input3.txtENTER File 'double_input3.txt' does not exist.\n Please enter the file name again: \n double_input1.txtENTER Total: -5,748.583\n Average: -57.486\n

JAVA PROGRAM Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage PLEASE FIX AND MODIFY THIS JAVA SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL TEST CASSES PLEASES. RIGHT NOW IT SAYS 0 OUT 3 PASSED. THE PICTURES THAT I PROVIDED PROOF THAT WHEN I UPLOAD IT TO HYPERGRADES IT FAILS TEST CASSES. THANK YOU. import java.io.*; import java.util.Scanner; public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("Please enter the file name: "); while (true) { String fileName = scanner.nextLine(); File file = new File(fileName); if (file.exists() && file.isFile()) { processFile(file); break; // Exit loop if file is found and processed } else { System.out.println("File '" + fileName + "' does not exist.\nPlease enter the file name again: "); } } scanner.close(); } private static void processFile(File file) { try { Scanner fileScanner = new Scanner(file); double total = 0; int count = 0; while (fileScanner.hasNextDouble()) { double number = fileScanner.nextDouble(); total += number; count++; } fileScanner.close(); double average = (count == 0) ? 0 : total / count; System.out.printf("Total: %.3f%n", total); System.out.printf("Average: %.3f%n", average); } catch (FileNotFoundException e) { // This block should never be reached as we checked if the file exists before System.err.println("Unexpected error: " + e.getMessage()); } } } Input1.txt -283.760 -456.167 19.815 -322.301 344.949 -850.533 -672.360 -188.767 646.462 -118.775 808.613 -746.865 -370.432 219.607 -166.298 -508.636 -989.128 -205.020 -928.165 -180.699 300.753 316.036 709.371 -886.860 -585.388 -554.302 -394.801 -970.233 905.941 787.854 -181.240 74.665 802.453 -951.292 -510.656 -203.999 -276.199 -350.575 398.501 -519.799 469.199 592.120 713.424 155.967 585.481 -780.846 387.700 457.806 560.933 -343.916 486.806 -43.184 237.494 191.488 309.275 -64.415 -206.333 -377.696 -409.553 -734.282 -777.221 -318.800 -695.745 40.631 -384.036 -937.134 -380.501 -77.083 756.524 -720.959 -579.412 -215.301 542.097 -402.541 468.721 151.050 573.296 -342.210 758.038 200.691 882.294 8.042 -87.760 634.811 -777.953 767.795 570.716 594.012 596.648 900.010 -370.754 985.007 785.562 -838.952 -71.182 72.845 -500.759 698.946 527.167 1.082 Test Case 1 Please enter the file name: \n double_input1.txtENTER Total: -5,748.583\n Average: -57.486\n Test Case 2 Please enter the file name: \n double_input2.txtENTER Total: 112,546.485\n Average: 56.273\n Test Case 3 Please enter the file name: \n double_input3.txtENTER File 'double_input3.txt' does not exist.\n Please enter the file name again: \n double_input1.txtENTER Total: -5,748.583\n Average: -57.486\n

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

JAVA PROGRAM

Chapter 4. Homework Assignment (read instructions carefully)

Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits):

Total: nnnnn.nnn

Average: nnnnn.nnn

Class name: FileTotalAndAverage

PLEASE FIX AND MODIFY THIS JAVA SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL TEST CASSES PLEASES. RIGHT NOW IT SAYS 0 OUT 3 PASSED. THE PICTURES THAT I PROVIDED PROOF THAT WHEN I UPLOAD IT TO HYPERGRADES IT FAILS TEST CASSES. THANK YOU.

import java.io.*;
import java.util.Scanner;

public class FileTotalAndAverage {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Please enter the file name: ");
while (true) {
String fileName = scanner.nextLine();
File file = new File(fileName);
if (file.exists() && file.isFile()) {
processFile(file);
break; // Exit loop if file is found and processed
} else {
System.out.println("File '" + fileName + "' does not exist.\nPlease enter the file name again: ");
}
}
scanner.close();
}

private static void processFile(File file) {
try {
Scanner fileScanner = new Scanner(file);
double total = 0;
int count = 0;
while (fileScanner.hasNextDouble()) {
double number = fileScanner.nextDouble();
total += number;
count++;
}
fileScanner.close();
double average = (count == 0) ? 0 : total / count;
System.out.printf("Total: %.3f%n", total);
System.out.printf("Average: %.3f%n", average);
} catch (FileNotFoundException e) {
// This block should never be reached as we checked if the file exists before
System.err.println("Unexpected error: " + e.getMessage());
}
}
}

Input1.txt

-283.760
-456.167
19.815
-322.301
344.949
-850.533
-672.360
-188.767
646.462
-118.775
808.613
-746.865
-370.432
219.607
-166.298
-508.636
-989.128
-205.020
-928.165
-180.699
300.753
316.036
709.371
-886.860
-585.388
-554.302
-394.801
-970.233
905.941
787.854
-181.240
74.665
802.453
-951.292
-510.656
-203.999
-276.199
-350.575
398.501
-519.799
469.199
592.120
713.424
155.967
585.481
-780.846
387.700
457.806
560.933
-343.916
486.806
-43.184
237.494
191.488
309.275
-64.415
-206.333
-377.696
-409.553
-734.282
-777.221
-318.800
-695.745
40.631
-384.036
-937.134
-380.501
-77.083
756.524
-720.959
-579.412
-215.301
542.097
-402.541
468.721
151.050
573.296
-342.210
758.038
200.691
882.294
8.042
-87.760
634.811
-777.953
767.795
570.716
594.012
596.648
900.010
-370.754
985.007
785.562
-838.952
-71.182
72.845
-500.759
698.946
527.167
1.082

Test Case 1

Please enter the file name: \n
double_input1.txtENTER
Total: -5,748.583\n
Average: -57.486\n

Test Case 2

Please enter the file name: \n
double_input2.txtENTER
Total: 112,546.485\n
Average: 56.273\n

Test Case 3

Please enter the file name: \n
double_input3.txtENTER
File 'double_input3.txt' does not exist.\n
Please enter the file name again: \n
double_input1.txtENTER
Total: -5,748.583\n
Average: -57.486\n

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