Android Utililty Methods Array to String Convert

return toString(ba, 0, ba.length);

char[] buf = new char[length * 2];
for (int i = 0, j = 0, k; i < length;) {
    k = ba[offset + i++];
    buf[j++] = HEX_DIGITS[(k >>> 4) & 0x0F];
    buf[j++] = HEX_DIGITS[k & 0x0F];
return new String(buf);

StringBuilder sb = new StringBuilder();
for (int i = 0; i < str.length; i++) {
    sb.append(StringUtil.toHexString(str[i]));
    sb.append(" ");
return sb.toString();

if (null == buffer)
    return null;
else
    return new String(buffer);

if (bytes == null) {
    return null;
try {
    return new String(bytes, CHARSET_NAME_UTF8);
} catch (final UnsupportedEncodingException e) {
    throw new RuntimeException(e.getMessage(), e);

if (bytes == null) {
    return null;
try {
    return new String(bytes, charset);
} catch (final UnsupportedEncodingException e) {
    throw new RuntimeException(e.getMessage(), e);

Collection<String> c = new Vector<String>();
for (int i = 0; i < array.length; i++) {
    c.add(array[i]);
return c.toString();

String result = "";
if (arrays != null && arrays.length > 0) {
    for (String value : arrays) {
        result += value + ",";
    result = result.substring(0, result.length() - 1);
return result;
...

if (ary == null) {
    return null;
StringBuilder sb = new StringBuilder();
sb.append("{");
for (int i = 0; i < ary.length; ++i) {
    sb.append(ary[i].toString());
    sb.append(",");
...

return arrayToString(array);