can anyone help me with this Java Problem. it would be helpfull if the code is n

Question

can anyone help me with this Java Problem. it would be helpfull if the code is not complicated or advance at all. im a beginner in java and I really want to understand the code. if anyone can help thanks a lot.

In this exercise, you are supposed to create a program.

Inside the program, there should be an instanced method called convertFile().

This method should is supposed to read a file called “input_data.txt”, modify the data that has been read (without changing “input_data.txt”) and store it in a file called “<name>_hm1_output.txt”, where <name> is your username. In my case, that file should be "username_hm1_output.txt”.

Explanation / Answer

package mani;
import java.io.*;
import java.util.Scanner;

public class temp{
   public void convertFile(){

  
String fileName = "C:\Users\MANIKANTA Reddy\workspace\chegg\src\mani\input_data.txt";

  
String line = null;
String username;
Scanner s=new Scanner(System.in);
System.out.println("Enter the username: ");
username=s.next();
username=username+"_hm1_output.txt";
  

try {

FileReader fileReader =
new FileReader(fileName);

BufferedReader bufferedReader =
new BufferedReader(fileReader);
File fout = new File(username);
   FileOutputStream fos = new FileOutputStream(fout);

   BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(fos));
  
while((line = bufferedReader.readLine()) != null) {
   System.out.print(line);
   bw.write(line);
   bw.newLine();
  
}   

bw.close();   
}
catch(FileNotFoundException ex) {
System.out.println(
"Unable to open file '" +
fileName + "'");
}
catch(IOException ex) {
System.out.println(
"Error reading file '"
+ fileName + "'");

}
   }
public static void main(String [] args) {
temp t=new temp();
t.convertFile();
}
}

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