join
public static String join(Object[]array)
-
Joins the elements of the provided array into a single String
containing the provided list of elements.No separator is added to the joined String.
Null objects or empty strings within the array are represented by
empty strings.StringUtils.join(null) = null StringUtils.join([]) = "" StringUtils.join([null]) = "" StringUtils.join(["a", "b", "c"]) = "abc" StringUtils.join([null, "", "a"]) = "a"