Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Include the following in the Java program: Try Statement to check if file does not exist and display an error message Try Statement to check

Include the following in the Java program:

Try Statement to check if file does not exist and display an error message

Try Statement to check if file content is an integer and display an error message if content is not an integer

___________________________________________________________________________________________

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 totalModified

{

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();

}

}

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Database Processing Fundamentals Design And Implementation

Authors: David M. Kroenke

5th Edition

B000CSIH5A, 978-0023668814

More Books

Students also viewed these Databases questions