JNumberSpinner(value: T, minValue: T, maxValue: T, stepSize: T, description: String? = null)
An abstract JSpinner for numbers that contains common logic for its subclasses.
minValue - the smallest number that may be represented
maxValue - the largest number that may be represented
stepSize - the default value to increment and decrement by
description - the description to use in error messages; defaults to DEFAULT_DESCRIPTION if null is given