Android Utililty Methods Unicode to String Convert

char[] in = s.toCharArray();
int off = 0;
int len = s.length();
char[] convtBuf = s.toCharArray();
char aChar;
char[] out = convtBuf;
int outLen = 0;
int end = off + len;
...

try {
    int len_to_use = Math.min(len, string.length - offset);
    return new String(string, offset, len_to_use,
            ENCODING_ISO_8859_1);
} catch (UnsupportedEncodingException e) {
    throw new RuntimeException(e);

int t = hex.length() / 6;
StringBuilder str = new StringBuilder();
for (int i = 0; i < t; i++) {
    String s = hex.substring(i * 6, (i + 1) * 6);
    String s1 = s.substring(2, 4) + "00";
    String s2 = s.substring(4);
    int n = Integer.valueOf(s1, 16) + Integer.valueOf(s2, 16);
    char[] chars = Character.toChars(n);
...