IL overtime laws only require overtime after an employee has worked all 40 hours in the week, not if they've just worked more than 8 hours in a day. Employers are not required to pay overtime according to Illinois overtime laws for having employees work on holidays or Sundays.
The java.util.Arrays.fill(byte[] a, byte val) method assigns the specified byte value to each element of the specified array of bytes.
from the linked page above: byte: The byte data type is an 8-bit signed two's complement integer. It has a minimum value of -128 and a maximum value of 127 (inclusive). The byte data type can be useful for saving memory in large arrays, where the memory savings actually matters.