JLongSpinner

class JLongSpinner : JNumberSpinner<Long>

value - the default value

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

JLongSpinner(value: Long = 0L, minValue: Long = Long.MIN_VALUE, maxValue: Long = Long.MAX_VALUE, stepSize: Long = 1L, description: String? = null)

val numberToT: (Number) -> Long

Transforms a Number into a T.

maxValue	`var maxValue: T` The maximal allowed value.
minValue	`var minValue: T` The minimal allowed value.

getValue	`open fun getValue(): T` Returns the current value of the spinner.
setValue	`open fun setValue(value: Any): Unit` Sets the value of the spinner.
validateValue	`fun validateValue(): ValidationInfo?` Validates the current value.