mport 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 two columns, and followed by the 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$()$;

String outputFileName $=$ "out.txt$"$;

$//$ 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$("\%8\mathrm{.}2$f

$",$ value$(0,5),$value$(5,5))$;

total $=$ total $+$ value;

$\}$

out.printf$("$Total: $\%-8\mathrm{.}2$f

$",$ total$)$;

in$.$close$()$;

out.close$()$;

$\}$

$\}$