how to convert character arrayList to string in java code example

Example 1: Arraylist string to character java

String str = "abcd...";
ArrayList<Character> chars = new ArrayList<Character>();
for (char c : str.toCharArray()) {
  chars.add(c);
}

Example 2: convert character arraylist to array

public char[] toArray(List<Character> list){
    char[] toReturn = new char[list.size()];
    int i = 0;
    for(char c : list)
        toReturn[i ++] = c;
    return toReturn;
}