Convert a text file to uppercase

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

public class ConvertToUppercase {

    public static void main(String[] args) {
        // Specify the input and output file paths
        String inputFile = "input.txt";
        String outputFile = "output.txt";

        try {
            // Create BufferedReader and BufferedWriter objects
            BufferedReader br = new BufferedReader(new FileReader(inputFile));
            BufferedWriter bw = new BufferedWriter(new FileWriter(outputFile));

            // Read the input file line by line
            String line;
            while ((line = br.readLine()) != null) {
                // Convert the line to uppercase and write to the output file
                bw.write(line.toUpperCase());
                // Add a newline after each line
                bw.newLine();
            }

            // Close the streams
            br.close();
            bw.close();

            System.out.println("Conversion completed. Check the output file: " + outputFile);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}