(c) The method propLong(int n) returns the proportion of long hailstone sequences with starting values between 1 and n, inclusive. Consider the following table, which provides data about the hailstone sequences with starting values between 1 and 10, inclusive.

Starting
Value Terms in the Sequence Length of the
Sequence Long?
1 1 1 No
2 2, 1 2 No
3 3, 10, 5, 16, 8, 4, 2, 1 8 Yes
4 4, 2, 1 3 No
5 5, 16, 8, 4, 2, 1 6 Yes
6 6, 3, 10, 5, 16, 8, 4, 2, 1 9 Yes
7 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1 17 Yes
8 8, 4, 2, 1 4 No
9 9, 28, 14, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1 20 Yes
10 10, 5, 16, 8, 4, 2, 1 7 No

The method call Hailstone. propLong(10) returns 0.5, since 5 of the 10 hailstone sequences shown in the table are considered long.

Write the propLong method. Assume that hailstoneLength and isLongSeq work as intended, regardless of what you wrote in parts (a) and (b). You must use isLongSeq appropriately to receive full credit.

/** Returns the proportion of the first n hailstone sequences that are considered long,

* as described in part (c).

* Precondition: n > 0

*/

public static double propLong(int n)