Question: This is my java code and I want to rewrite Total.java using the pseudocode below so that you can add total to the existing file
This is my java code and I want to rewrite Total.java using the pseudocode below so that you can add total to the existing file:
Open a scanner for the file.
For each number in the scanner
Add the number to an array.
Close the scanner.
Set total to 0.
Open a print writer for the file.
For each number in the array
Write the number to the print writer.
Add the number to total. Write total to the print writer.
Close the print writer.
Total.java
import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Scanner;
/**
This program reads a file with numbers, and writes the numbers to another
file, lined up in a column and followed by their total.
*/
public class Total
{
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();
// 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);
// Read the input and write the output
double total = 0;
while (in.hasNextDouble())
{
double value = in.nextDouble();
out.printf("%15.2f ", value);
total = total + value;
}
out.printf("Total: %8.2f ", total);
in.close();
out.close();
}
}
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