import java.util.Base64;

// Java中的Base64编码和解码
class Main
{
    public static void main(String[] args)
    {
        String string = "Techie Delight";

        // 使用 `Base64` 编码器对字符串进行编码
        Base64.Encoder encoder = Base64.getEncoder();
        String encoded = encoder.encodeToString(string.getBytes());
        System.out.println("Encoded Data: " + encoded);

        // 解码编码数据
        Base64.Decoder decoder = Base64.getDecoder();
        String decoded = new String(decoder.decode(encoded));
        System.out.println("Decoded Data: " + decoded);
    }
}