help with this code in java 

Given two strings, word and a separator sep, return a big string made of count occurrences of the word, separated by the separator string. repeatSeparator ("Word", "X", 3) "WordXWordXWord" repeatSeparator ("This", "And", 2) "ThisAndThis" "This" repeatSeparator("This", "And", 1) For example: Result System.out.println (repeatSeparator("Q", "F", 3)); QFQFQ Test Answer: (penalty regime: 0, 10, 20, 50, ... %) Reset answer 1 public String repeatSeparator(String word, String sep, int count) { 2 // TODO your code goes here 3}