Java collections convert a string to a list of characters

Question

I would like to convert the string containing abc to a list of characters and a hashset of characters. How can I do that in Java ?

List

        

Answer 1

IntStream can be used to access each character and add them to the list.

String str = "abc";
List charList = new ArrayList<>();
IntStream.range(0,str.length()).forEach(i -> charList.add(str.charAt(i)));