Modify the Total program so that it shows the average, not the total of the inputs. Total.java 1 import java.io.File; 2 import java.io.FileNotFoundException; 3 import java.io.PrintWriter; 4 import java.util.Scanner; 5 6 /** 7 8. 9 */ 10 public class Total 11 { 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 This program reads a file with numbers, and writes the numbers to another file, lined up in a column and followed by their average. public static void main(String[] args) throws FileNotFoundException { // Prompt for the input and output file names Scanner console = new Scanner(System.in); System.out.print("Input file: "); String inputFileName = console.next(); System.out.print("Output file: "); String outputFileName console.next(); %3D // Construct the Scanner and PrintWriter objects for reading and writing File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); PrintWriter out = new PrintWriter(outputFileName); %3D // Read the input and write the output double total = 0; while (in.hasNextDouble()) { double value = in.nextDouble(); out.printf("%17.2f\n", value); total = %3D total + value; } out.printf("Total: %10.2f\n", total); in.close(); out.close(); }
Modify the Total program so that it shows the average, not the total of the inputs. Total.java 1 import java.io.File; 2 import java.io.FileNotFoundException; 3 import java.io.PrintWriter; 4 import java.util.Scanner; 5 6 /** 7 8. 9 */ 10 public class Total 11 { 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 This program reads a file with numbers, and writes the numbers to another file, lined up in a column and followed by their average. public static void main(String[] args) throws FileNotFoundException { // Prompt for the input and output file names Scanner console = new Scanner(System.in); System.out.print("Input file: "); String inputFileName = console.next(); System.out.print("Output file: "); String outputFileName console.next(); %3D // Construct the Scanner and PrintWriter objects for reading and writing File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); PrintWriter out = new PrintWriter(outputFileName); %3D // Read the input and write the output double total = 0; while (in.hasNextDouble()) { double value = in.nextDouble(); out.printf("%17.2f\n", value); total = %3D total + value; } out.printf("Total: %10.2f\n", total); in.close(); out.close(); }
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
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![Modify the Total program so that it shows the average, not the total of the inputs.
Total.java
1 import java.io.File;
2 import java.io.FileNotFoundException;
3 import java.io.PrintWriter;
4 import java.util.Scanner;
5
6 /**
7
8.
9 */
10 public class Total
11 {
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This program reads a file with numbers, and writes the numbers to another
file, lined up in a column and followed by their average.
public static void main(String[] args) throws FileNotFoundException
{
// Prompt for the input and output file names
Scanner console = new Scanner(System.in);
System.out.print("Input file: ");
String inputFileName = console.next();
System.out.print("Output file: ");
String outputFileName
console.next();
%3D
// Construct the Scanner and PrintWriter objects for reading and writing
File inputFile = new File(inputFileName);
Scanner in = new Scanner(inputFile);
PrintWriter out = new PrintWriter(outputFileName);
%3D
// Read the input and write the output
double total = 0;
while (in.hasNextDouble())
{
double value = in.nextDouble();
out.printf("%17.2f\n", value);
total =
%3D
total + value;
}
out.printf("Total: %10.2f\n", total);
in.close();
out.close();
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3200e892-7b83-4670-8aa5-c4c84f2a6adb%2F7c07c005-f697-4374-8d80-7cb713221fc4%2Fkzx327p.png&w=3840&q=75)
Transcribed Image Text:Modify the Total program so that it shows the average, not the total of the inputs.
Total.java
1 import java.io.File;
2 import java.io.FileNotFoundException;
3 import java.io.PrintWriter;
4 import java.util.Scanner;
5
6 /**
7
8.
9 */
10 public class Total
11 {
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
This program reads a file with numbers, and writes the numbers to another
file, lined up in a column and followed by their average.
public static void main(String[] args) throws FileNotFoundException
{
// Prompt for the input and output file names
Scanner console = new Scanner(System.in);
System.out.print("Input file: ");
String inputFileName = console.next();
System.out.print("Output file: ");
String outputFileName
console.next();
%3D
// Construct the Scanner and PrintWriter objects for reading and writing
File inputFile = new File(inputFileName);
Scanner in = new Scanner(inputFile);
PrintWriter out = new PrintWriter(outputFileName);
%3D
// Read the input and write the output
double total = 0;
while (in.hasNextDouble())
{
double value = in.nextDouble();
out.printf("%17.2f\n", value);
total =
%3D
total + value;
}
out.printf("Total: %10.2f\n", total);
in.close();
out.close();
}
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