Ranges
List<Double> scores;
Iterable<Double> belowMedianScores = Iterables.filter(scores, Range.lessThan(median));
...
Range<Integer> validGrades = Range.closed(1, 12);
for(int grade : ContiguousSet.create(validGrades, DiscreteDomain.integers())) {
...
}
Introduction
- (a..b) = {x | a < x < b}
- [a..b] = {x | a <= x <= b}
- [a..b) = {x | a <= x < b}
- (a..b] = {x | a < x <= b}
- (a..+∞) = {x | x > a}
- [a..+∞) = {x | x >= a}
- (-∞..b) = {x | x < b}
- (-∞..b] = {x | x <= b}
- (-∞..+∞) = all values
Building Ranges
| Range type | Method |
|---|---|
| (a..b) | open(C, C) |
| [a..b] | closed(C, C) |
| [a..b) | closedOpen(C, C) |
| (a..b] | openClosed(C, C) |
| (a..+∞) | greaterThan(C) |
| [a..+∞) | atLeast(C) |
| (-∞..b) | lessThan(C) |
| (-∞..b] | atMost(C) |
| (-∞..+∞) | all() |
Operations
Range.closed(1, 3).contains(2); // returns true
Range.closed(1, 3).contains(4); // returns false
Range.lessThan(5).contains(5); // returns false
Range.closed(1, 4).containsAll(Ints.asList(1, 2, 3)); // returns true