implement insertAfterAbove for this Pseudocode below in java

Input: Key k and value v Output: Topmost position of the entry inserted in the skip list Code Fragment 10.15: Insertion in a skip list of entry (k,v) We assume the skip list does not have an entry with key k. Method coinFlip() returns "heads" or "tails", each with probability 1/2. Instance variables n,h, and s respectively hold the number of entries, the height, and the start node of the skip list