Characters { public static ImmutableList<Character> range(char start, char end) { return Integers.range(start, end) .stream() .map( current -> (char)current.intValue()) .collect(ImmutableCollectors.toImmutableList()); }  static ImmutableList<Character> range(char start, char end);  }
@Test public void testRange() throws Exception { assertEquals("[A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z]", Characters.range('A', 'Z').toString()); }