Answer:
The code has been developed in JAVA as it is the best feasible concept to handle the files.
CODE :
import java.io.*;
public class textEditor { // main class that has the code
public static void main(String[] args) { // main driver method
try {
int count = 0; // count to print the line numbers to the output file
BufferedReader br = new BufferedReader(new FileReader("lines.txt")); // reading the data from the source text file
File outfile = new File("numbered_lines.txt"); // creating a file in the output directory
FileWriter fw = new FileWriter(outfile.getAbsoluteFile()); // initialising the filewriter class to write the data
BufferedWriter bw = new BufferedWriter(fw); // appending the bufferedwriter to get the data to the output file
String line; // temporary string value
if (!outfile.exists()) { // if file doesnt exists, then create it
outfile.createNewFile();
}
while ((line = br.readLine()) != null){ // iterating over the total line in the source file
count++;
bw.write(count +" "+ line); // writing the source data with the line numbers to the output file
bw.write("\n");
}
bw.close(); // closing the file
System.out.println("Process Done"); // prompt for the user
} catch (IOException e) { // catching if any exception is raised
e.printStackTrace();
}
}
}
Explanation:
