Java Base64 decode String to byte array
import java.util.Arrays; import java.util.Base64; public class Main { public static void main(String[] argv) throws Exception { byte[] array = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 }; String s = Base64.getEncoder().encodeToString(array); array = Base64.getDecoder().decode(s); System.out.println(Arrays.toString(array)); }// ww w .j a va 2 s .co m }