Description: This version of IntField has both an upper and lower bound

$*$ associated with it$.$ The user must type a number within these bounds

$*$ into the field. A programmer defined exception, IntOutOfRangeException, is

$*$ thrown if the bound is exceeded.

$*$ Note that upperBound and lowerBound are set initially to MAX and MIN possible

$*$ values respectively. This allows the field to accept any numeric input if

$*$ its first constructor is used.