Converting ArrayList of Characters to a String?

Question

How to convert an ArrayList to a String in Java? The toString method returns it as [a,b,c] string - I wa

Answer 1

You can do it using toString() and RegExp without any loops and streams:

List list = Arrays.asList('a', 'b', 'c'); String s = list.toString().replaceAll("[,\\s\\[\\]]", "");