A better way to create custom pfp's in DSi Paint

NewerMain3.java

package package3;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Base64;
import org.apache.commons.io.FileUtils;

/**
 * A program that converts a given image into Base 64. The data is written to a
 * file named "egg.txt"<br>
 * Please note that Apache Commons IO is required for this code to function
 * properly. I used version 2.6, as Baeldung suggested.
 *
 * @author GuiedGui
 */
public class NewerMain3 {

    /**
     * The main method; the entry point of the application
     *
     * @param args the command line arguments
     * @throws IOException in case a bad image or bad output is specified
     */
    public static void main(String[] args) throws IOException {
        // the path of the file
        String filePath = "shigu.png";

        // reading the contents of the file as a byte array
        byte[] fileContent = FileUtils.readFileToByteArray(new File(filePath));

        // Java 8 conversion of byte array to Base 64
        // make sure the "data" part before the semicolon matches the
        // MIME type of the given image
        String encodedString = "data:image/png;base64,"
                + Base64.getEncoder().encodeToString(fileContent);

        // writing to a file
        try (PrintWriter out = new PrintWriter("egg.txt")) {
            out.println(encodedString);
            System.out.println("Done!");
        }
    }
}