Problem converting Array to ArrayList

Question

Same error with E, T example
https://code.sololearn.com/cmNQH014sVF0/?ref=app

Answer 1

You could use these for arrays

char[] arr = {'2', '5'};
ArrayList<Character> list = new ArrayList<Character>();
for (char ch: arr) list.add(ch);

or

Character[] arr = {'2', '5'};
ArrayList<Character> list = new ArrayList<>(Arrays.asList(arr));

or

Character[] arr = {'2', '5'};
ArrayList<Character> list = new ArrayList<>();
list.addAll(Arrays.asList(arr));

This is the result.

for (char i : list) System.out.println(i);
or
for (Character i : list) System.out.println(i);

// Keep learning & happy coding :D

Answer 2

I think asList doesn't work for char arrays. Maybe try

ArrayList<Character> li = new ArrayList<Character>();
for (char ch: arr) {
li.add(ch);
}

Answer 3

Thank you both, now it works!