Not sure how to properly call the method that uses a string array as a parameter. As stated, transform2(["hi"]); will not work. What is the correct way to do so? In Java.

["a", "bb", "ccc"] .. describes an array that includes 3 strings: "a", "bb", and "ccc" Note that this is pseudo code. The method call transform2(["hi"]) ; won't compile. transform2(["hi"]) returns "1hi/" transform2(["one", "two", "three"]) returns "3one/two/three/" transform2([]) returns "" transform2(["5", "4", "3", "2", "1"]) returns "55/4/3/2/1/" transform2(["a", "b", "c", "d", "e", "f"]) returns "^a/b/c/d/e/f/