exception handling in java

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class ComplexExceptionHandling {
    public static void main(String[] args) {
        try {
            String filename = "example.txt";
            int result = readAndDivide(filename, 10);
            System.out.println("Result: " + result);
        } catch (IOException e) {
            System.out.println("An IO exception occurred while reading the file: " + e.getMessage());
        } catch (ArithmeticException e) {
            System.out.println("An arithmetic exception occurred during division: " + e.getMessage());
        } catch (Exception e) {
            System.out.println("An unexpected exception occurred: " + e.getMessage());
        } finally {
            System.out.println("End of program.");
        }
    }

    public static int readAndDivide(String filename, int divisor) throws IOException {
        int result = 0;
        BufferedReader reader = null;
        try {
            reader = new BufferedReader(new FileReader(filename));
            String line;
            while ((line = reader.readLine()) != null) {
                result += Integer.parseInt(line);
            }
            if (result == 0) {
                throw new ArithmeticException("Division by zero");
            }
            return result / divisor;
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException e) {
                    System.out.println("Error closing the file: " + e.getMessage());
                }
            }
        }
    }
}