Java에서 목록을 배열로 변환하는 방법은 무엇입니까?

Object[] toArray()

<T> T[] toArray(T[] a)

package com.tutorialspoint;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class CollectionsDemo {
   public static void main(String[] args) {
      List<Integer> list = new ArrayList<>(Arrays.asList(1,2,3,4));
      System.out.println("List: " + list);
      Object[] items = list.toArray();
      for (Object object : items) {
         System.out.print(object + " ");
      }
      System.out.println();
      Integer[] numbers = list.toArray(new Integer[0]);
      for (Integer number : numbers) {
         System.out.print(number + " ");
      }
   }
}

List: [1, 2, 3, 4]
1 2 3 4
1 2 3 4