An alternative approach is Guava's Range class:

Range.closed(1,5) == [1,5]

Range.open(1,5) == (1,5)

Range.openClosed(1,5) == (1,5]

Range.closedOpen(1,5) == [1,5)

Range.greaterThan(1) == (1,infinity)

Range.atLeast(1) == [1,infinity)

That class always strikes me as having high power-to-weight. It has methods like encloses(anotherRange), contains(aValue), and others.

https://google.github.io/guava/releases/19.0/api/docs/com/go...