Java Utililty Methods Byte Array to Base64

String byteArrayToBase64(byte[] a)
Translates the specified byte array into a Base64 string as per Preferences.put(byte[]).

return byteArrayToBase64(a, false);

String bytesToBase64(byte[] bytes)
bytes To Base

char base64[] = new char[bytes.length];
for (int i = 0; i < bytes.length; i++) {
 base64[i] = sBitChars[bytes[i]];
return new String(base64);

String bytesToBase64(byte[] bytes, int length)
Converts a maximum of three bytes to 4 Base64 characters

String result = "";
if (length == 3) {
 result += bitsToBase64((byte) ((bytes[0] & 0xFC) >> 2));
 result += bitsToBase64((byte) ((bytes[0] & 0x03) << 4 | (bytes[1] & 0xF0) >> 4));
 result += bitsToBase64((byte) ((bytes[1] & 0x0F) << 2 | (bytes[2] & 0xC0) >> 6));
 result += bitsToBase64((byte) (bytes[2] & 0x3F));
if (length == 2) {
...

String byteToBase64(byte[] data)
From a byte[] returns a base 64 representation

return Base64.getEncoder().encodeToString(data);