Question

I want to convert ArrayList of Character to String. I read similar thread like Best way to convert an ArrayList to a string but I want simpler way.

I tried this

List<Character> chars = new ArrayList<Character>();
...
Character[] charArray = (Character[]) chars.toArray();
String output = new String(charArray); // error

But it didn’t work because the new String() constructor takes only char[] as parameter. I couldn’t convert chars or charArray to char[] type easily.

Aren’t there any simple way? Or, do I have to iterate to make a String?

Answer 1

This is about as simple as it gets:

StringBuilder result = new StringBuilder(chars.size());
for (Character c : chars) {
  result.append(c);
}
String output = result.toString();