1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
finlep [7]
3 years ago
8

Write a program that reads a file containing text. Read each line and send it to the output file, preceded by line numbers. If t

he input file is Mary had a little lamb Whose fleece was white as snow. And everywhere that Mary went, The lamb was sure to go! then the program produces the output file /* 1 */ Mary had a little lamb /* 2 */ Whose fleece was white as snow. /* 3 */ And everywhere that Mary went, /* 4 */ The lamb was sure to go! The line numbers are enclosed in /* */ delimiters so that the program can be used for numbering Java source files. Prompt the user for the input and output file names.

Computers and Technology
1 answer:
Shtirlitz [24]3 years ago
7 0

Answer:

I am writing a JAVA program:

import java.io.FileReader;  // class used for reading data from a file

import java.io.IOException;  //class used for handling exceptions

import java.io.PrintWriter;  // class used to printing or writing formatted data. It is used when the data to be written contains text and numbers

import java.util.Scanner;   // class used to take input from the user

public class Main  {  //start of the class

public static void main(String[] args)  {//start of main() function body

Scanner input = new Scanner(System.in);  //creates Scanner class object

System.out.print("Enter the input file name: ");  // prompts user to enter the input file name

String input_file = input.next();  //to  read and return the token i.e. input file name and store this into input_file String type variable

System.out.print("Enter the output file name: "); // prompts user to enter the output file name

String output_file = input.next();   /to  read and return the token i.e. output file name and store this into output_file String type variable

try   {/* try  defines a chunk of code to be tested for errors during the execute of this chunk. its a code block for reading from input file and writing to output file. This handles the exception if program cannot create or write to the file indicated. */

   FileReader inFile = new FileReader(input_file);  //creates object inFile of FileReader class to read the input_file contents

   Scanner scan = new Scanner(inFile);  //read and scans the input file

   PrintWriter outFile = new PrintWriter(output_file);  //creates object outFile of PrintWriter class to write to the output file. It is used to write output data in a readable text form.

   int count = 1;    //counts the line number      

   while (scan.hasNextLine())  {  //loop keeps checking for the next line in input file

    String lines = scan.nextLine();  // reads the entire line of the input file and stores that line contents in String lines

    outFile.println("/* " + count + " */ " + lines);  //each line represented with line number enclosed in /* */

    count++;  }   //increments the line number at each iteration    

    outFile.close();        }  //closes the output file after writing the contents from input file with each line of the input file enclosed in  /* */

catch (IOException e)  {  // catching the IOException and prints the following message if program cannot create input_file or write to the output_file

   System.out.println("Error processing file: " + e);    }     }   }

Explanation:

The program is well explained in the comments mentioned with each statement of the above program. The user is prompted to enter input and output file names. Then the program uses a while loop that scans through lines of the input file and count variable counts each line of input file. Then at each iteration the count variable counts a line of input file and line number of each line of the input file is enclosed in /* */ delimiters. The contents of input file, in which the line numbers of text lines of the input file are enclosed in /* */ delimiters, is written to the output file.

The screenshot of the program is attached along with the output file produces as a result of this program execution.

You might be interested in
Aaron is stating the main idea of what he read in his own words. He is _____.
Feliz [49]

Answer:

summarizing

Explanation:

when someone explains in their own words the main idea of a story, it is summarizing.

8 0
3 years ago
Read 2 more answers
The windows troubleshooting utility that identifies and eliminates nonessential files is called _____.
Virty [35]
I think it is Defragment
8 0
3 years ago
Read 2 more answers
Traceability of requirements is helpful in the followingexcept
larisa86 [58]

Answer: D)  Identifying GUI's for a particular requirement

Explanation:

 Traceability of requirements is helpful except identifying GUI's for a particular requirements as, traceability in project management describe the relationships between two or more element throughout in the development process and outline the relationship between the customer requirement by traceability matrix. And the requirement of traceability is so important because it creating a downstream flow of software and test cases in software requirement but not helpful in GUI identification.

6 0
3 years ago
There are information that are in the web view source that may not appear on the web page such as meta name. In addition there c
SCORPION-xisa [38]

Answer:

True on a web page such meta name will not appear in web view source and irrelevant information will be displayed.

Explanation:

Basically web page source is compiled version of HTML script so the end-user he or she tries to view pages system will show only in HTML.

so meta name information and active object information will not be displayed while viewing the web source code instead of that the irrelevant informant ions will be displayed and end-user cannot under anything out of the web source code.

Moreover, even the client side validation script also will not be displayed.

Only HTML will be displayed  

3 0
3 years ago
A technician needs to be prepared to launch programs even when utility windows or the Windows desktop cannot load. What is the p
lisov135 [29]

Answer:

Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.

Explanation:

7 0
3 years ago
Other questions:
  • In this story, the reader is strongly encouraged to believe that Skidmore is guilty of poisoning his brother Manchester. Explain
    6·1 answer
  • You view a portion of a document on the screen through a ____.
    6·1 answer
  • During the ________ phase of the systems development life cycle process, developers construct, install, and test the components
    13·1 answer
  • Edhesive coding practice 3.4​
    12·1 answer
  • Project: Math Tutor Program with Error Handling
    9·2 answers
  • 27. If X and Y are int type variables,
    14·1 answer
  • Write a program second.cpp that takes in a sequence of integers, and prints the second largest number and the second smallest nu
    7·1 answer
  • Yo, my Lenovo laptop keeps showing this screen but I can't sign in, can someone help me?
    5·2 answers
  • Question #7
    10·2 answers
  • What Does The Computer Monitor Contain?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!