How to convert a primitive char array into a List

Arrays.asList()  only taking objects and convert them into a list; however primitive types, like char,  are not considered instances.

char[] chars = "I hate it".charArray();
List charList = Arrays.asList(chars);

char array is an object instance. so, here charList is a collection to hold a single array object, but not individual chars.

I didn't find a clever way, but having to convert a single char into its wrapper and then collect them into a collection.

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

/**
 *
 * @author YNZ
 */
public class ConvertPrimArrayIntoList {

    public static void main(String[] args) {

        //a primitive array
        char[] chars = "I hate it. ".toCharArray();
        

        //
        List charList = new ArrayList<>();
        for (char c : chars) {
            charList.add(c);
        }

        System.out.println("size of charList " + charList.size());
        
        //in java 8
        String str = "what is happening? ";
        List listOfChar = str.chars().mapToObj(c -> new Character((char) c)).collect(Collectors.toList());
        System.out.println("List chars : " + listOfChar);

    }

}

java.util.ConcurrentModificationException: null

This error happens when removing an element in a for- loop.  Using an iterator and its remove method then the error will be solved.


using an iterator to solve the concurrent modification exception, caused by using for loop.

            for (Iterator it = foundCopy.iterator(); it.hasNext();) {
                Yard yard = it.next();
                if (checked.contains(yard.getInterest())) {
                    it.remove();
                }
            }

Or usign java 8, streaming and then filtering.