Java Utililty Methods Long Number to Date

if (number == 0) {
    return "zero";
String snumber = Long.toString(number);
String mask = "000000000000";
DecimalFormat df = new DecimalFormat(mask);
snumber = df.format(number);
int billions = Integer.parseInt(snumber.substring(0, 3));
...

if (time == Long.MAX_VALUE) {
    return Integer.MAX_VALUE;
if (time == Long.MIN_VALUE) {
    return Integer.MIN_VALUE;
int timeInSec = (int) (time / 1000);
return timeInSec - timeZeroInt;
...

long sign = value == 0 ? 1 : value / Math.abs(value);
int i = 0;
double tmp = Math.abs(value);
while (i < factors.length && i < unites.length && tmp > factors[i]) {
    tmp = tmp / factors[i++];
tmp *= sign;
String result;
...

if (targets == null) {
    return new String[0];
List<String> list = new ArrayList<String>();
for (Long target : targets) {
    list.add(target.toString());
return list.toArray(new String[0]);
...

try {
    SimpleDateFormat sf = new SimpleDateFormat(format);
    return sf.parse(date).getTime();
} catch (ParseException e) {
    e.printStackTrace();
return 0l;

Date date = new Date(datenum);
SimpleDateFormat df = new SimpleDateFormat("MM/dd/yyyy");
return df.format(date);

SimpleDateFormat date_format = new SimpleDateFormat(flameDateFormat);
Calendar c = Calendar.getInstance();
c.setTimeInMillis(millisecs);
return date_format.format(c.getTime());

return new SimpleDateFormat("yyyy-MM-dd").format(new Date(timestamp));

Date date = new Date(uTime);
return dateFormat.format(date);

Date date = new Date(val);
SimpleDateFormat df2 = new SimpleDateFormat("dd/MM/yy");
String dateText = df2.format(date);
return dateText;