Java Utililty Methods Long to String

return Long.toHexString(val);

StringBuilder sb = new StringBuilder();
for (int i = 0; i < LONG_ENC_STR_LEN; i++) {
    int remainder = (int) (value % printableChars.length);
    sb.insert(0, printableChars[Math.abs(remainder)]);
    value = value / printableChars.length;
    if ((i == 0) && (value < 0)) {
        value = value * 2;
return sb.toString();

if (value == Integer.MIN_VALUE) {
    return "Integer.MIN_VALUE";
} else if (value == Integer.MAX_VALUE) {
    return "Integer.MAX_VALUE";
} else if (value == Long.MIN_VALUE) {
    return "Long.MIN_VALUE";
} else if (value == Long.MAX_VALUE) {
    return "Long.MAX_VALUE";
...

if (value == null) {
    return "00000000000000000000";
return String.format("%020d", value);

return value >= 1e11 ? String.format("%.0fG", value / 1e9)
        : value >= 1e7 ? String.format("%.0fM", value / 1e6)
                : (value >= 1e4) ? String.format("%.0fK", value / 1e3) : Long.toString(value);

if (value == Long.MIN_VALUE) {
    return "-9223372036854775808";
if (value == 0) {
    return "0";
boolean neg = value < 0;
char[] chars = new char[24];
...

if (values == null) {
    return null;
String[] results = new String[values.length];
for (int i = 0; i < values.length; i++) {
    results[i] = String.valueOf(values[i]);
return results;
...