Any help with the code for this, thanks in advance 4.3 Name your source code fil

Question

Any help with the code for this, thanks in advance

4.3 Name your source code file Hw1_I.java. Write a program that prompts the user for the name of a Java source code file. The program shall read the source code file and output the contents to a new file named the same as the input file, but with a txt file name extension (e.g., if the input file is foo.java then the output file shall be named foo.java.txt). Each line of the input file shall be numbered with a line number (formatted as shown below) in the output file. For example, if the user enters HwI_1java as the name of the input file and Hwl_1java contains 7CLASS: Hwl1 (Hw11.java) public class Hw1 1 public static void main (String[] pArgs) public Hw1 1 then the contents of the output file Hwl_1java.txt would be: 001 //* 002] 7/ CLASS: Hw11 (Hw1 1.java) 003 //* 004] public class Hwl 1 ( 005] (006] 007] 008] [009] ) public static void main (String[) pArgs)( public Hw1 10 method with a format Hint: to print an integer as shown above in a field of width 3 with leading O's use the printf specifier of %03d.

Explanation / Answer

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

import java.io.InputStreamReader;

public class Converter {

   public static void main(String args[]) throws IOException {

       // FileName Read

       BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

       System.out.print("Please enter complete file name with path : ");

       String fileName = reader.readLine();

       // File read

       File file = new File(fileName);

       BufferedReader br = new BufferedReader(new FileReader(file));

       // Output to a file with append mode false

       FileWriter writer = new FileWriter(fileName + ".txt", false);

       String st;

       int count = 1;

       while ((st = br.readLine()) != null) {

           writer.write(String.format("[%03d] %s ", count, st));

           count++;

       }

       writer.close();

       // File write complete

       System.out.println("File write complete to : " + fileName);

   }

}

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