How to remove a specific line from a file?

Question

Java

It is necessary to remove a certain line from the file. I did it like this, but it doesn't work:

public static void deleteServer(int index) {
    StringBuilder builder = new StringBuilder();

    try
    {
      File file = new File(getFilePath());
      BufferedReader reader = new BufferedReader(new FileReader(file));
      
      int current = 0;
      String line;
      
      while ((line = reader.readLine()) != null) {
        if (current != index)
          builder.append(line);
          current++;
      }
      
      FileWriter writer = new FileWriter(file);
      writer.write(builder.toString());
      writer.close();
      reader.close();
    }
    catch (IOException e)
    {

    }
  }

Answer 1

public static void deleteServer(int index) throws IOException {
        BufferedReader reader = null;
        PrintWriter writer = null;
        try {
            File file = new File(getFilePath());
            String fileToWrite = "fileToWrite.txt";
            reader = new BufferedReader(new FileReader(file));
            writer = new PrintWriter(new FileWriter(fileToWrite));
            int current = 0;
            String line;
            while ((line = reader.readLine()) != null) {
                if (current != index) {
                    writer.println(line);
                }
                current++;
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (writer != null) {
                writer.close();
            }
            if (reader != null) {
                reader.close();
            }
        }
    }