Java Utililty Methods Byte Array to String

StringBuilder stringBuilder = new StringBuilder();
for (int index = 0; index < bytes.length; index++) {
    stringBuilder.append(index == 0 ? "" : separator).append(((int) bytes[index]) & 0xFF);
return stringBuilder.toString();

String str = new String(args);
return str;

return new String(b, start, len);

if (null == bs) {
    return EMPTY_STRING;
String s = null;
try {
    s = new String(bs, charset);
} catch (Exception e) {
return s;

StringBuilder sb = new StringBuilder();
for (int i = offset; i < offset + length; i++) {
    byte b = buffer[i];
    sb.append(String.format("%02X", b));
    sb.append(" ");
return sb.toString();

if (bytes == null || bytes.length == 0)
    return "";
StringBuffer sb = new StringBuffer();
for (byte b : bytes)
    sb.append(byte2HEX(b));
return sb.toString();

StringBuilder string = new StringBuilder();
for (byte b : bytes) {
    String hexString = Integer.toHexString(0x00FF & b);
    string.append(hexString.length() == 1 ? "0" + hexString : hexString);
return string.toString();

StringBuffer stringBuffer = new StringBuffer();
for (int i = 0; i < bytes.length; i++) {
    stringBuffer.append((char) bytes[i]);
return stringBuffer.toString();

String result = "";
for (Byte bts : bytesArray) {
    result += (char) bts.intValue();
return result;

if (data == null)
    return null;
if (data.length == 0)
    return "";
StringBuilder sb = new StringBuilder();
for (byte b : data) {
    sb.append(b).append(' ');
return sb.toString();