Java Basic IO - Byte Stream vs Character Stream

import java.io.*;

public class ByteStreamVsCharStream {
    public static void main(String[] args) {

        // Input source
        String souce = "Affandes";
        
        // Create Byte Stream and Character Stream
        ByteArrayInputStream inputByte = new ByteArrayInputStream(souce.getBytes());
        StringReader inputReader = new StringReader(souce);
        
        try {
        
            // Create container/buffer
            byte byteBuff[] = new byte[5];
            char charBuff[] = new char[5];
            
            // Read input source
            inputByte.read(byteBuff);
            inputReader.read(charBuff);
            
            // Output container/buffer
            System.out.println("byteBuff[0] = " + byteBuff[0]);
            System.out.println("charBuff[0] = " + charBuff[0]);
            
        } catch (IOException ex) {
            // Error handling
        }

    }
}