/* Given an array of strings, return a Map where each different string is a key and its value is true if that string appears 2 or more times in the array. wordMultiple(["a", "b", "a", "c", "b"]) → {"a": true, "b": true, "c": false} wordMultiple(["c", "b", "a"]) → {"a": false, "b": false, "c": false} wordMultiple(["c", "c", "c", "c"]) → {"c": true} */ public class WordMultiple { }