import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.util.Base64;

public class FileEncoder {

public static void main(String[] args) {

if (args.length != 1) {

System.out.println("Usage: java FileEncoder <input_file>");

return;

}

String inputFile = args[0];

try (BufferedReader reader = new BufferedReader(new FileReader(inputFile))) {

String fileContents = reader.readLine(); // Read the first line. Adjust as needed for larger files.

if(fileContents == null){

System.out.println("File is empty.");

return;

}

byte[] fileBytes = fileContents.getBytes(); // Convert to bytes

String encodedString = Base64.getEncoder().encodeToString(fileBytes); // Encode to Base64

System.out.println(encodedString); // Print the encoded output

} catch (IOException e) {

System.err.println("Error reading file: " + e.getMessage());

}

}

}