Streams: IntStream.range excludes the end, rangeClosed includes it

range(start, end) stops one short of end while rangeClosed(start, end) includes it, a distinction easy to miss since both otherwise behave identically.

Code

int[] exclusive = IntStream.range(1, 5).toArray();
int[] inclusive = IntStream.rangeClosed(1, 5).toArray();
System.out.println("range(1,5): " + Arrays.toString(exclusive));
System.out.println("rangeClosed(1,5): " + Arrays.toString(inclusive));

Output

range(1,5): [1, 2, 3, 4]
rangeClosed(1,5): [1, 2, 3, 4, 5]