@Override
public String toString() {
StringBuilder sb = new StringBuilder();
long r = period;
if (r < 0) {
sb.append('-');
r = -r;
}
TimePeriodUnit[] units = TimePeriodUnit.values();
int cnt = 0;
for (int i = units.length; --i >= 0; ) {
TimePeriodUnit unit = units[i];
long val = r / unit.period();
r %= unit.period();
boolean ms = unit == TimePeriodUnit.SECOND && r > 0;
if (val > 0 || ms) {
cnt++;
sb.append(val);
if (ms) sb.append('.').append(r / 100).append((r / 10) % 10).append(r % 10);
sb.append(unit.code());
}
}
if (cnt == 0) sb.append(r);
return sb.toString();
}
public static TimePeriod valueOf(long n, TimePeriodUnit unit) {
return new TimePeriod(n * unit.period());
}
