寻找一种更好的方法将ArrayList <Double>转换为double []数组

import java.util.ArrayList;

public class ArrayListToDoubleArray {
    public static void main(String[] args) {
        ArrayList<Double> arrayList = new ArrayList<>();
        arrayList.add(1.0);
        arrayList.add(2.0);
        arrayList.add(3.0);

        double[] doubleArray = new double[arrayList.size()];
        for (int i = 0; i< arrayList.size(); i++) {
            doubleArray[i] = arrayList.get(i);
        }

        // 或者使用增强for循环
        int index = 0;
        for (Double value : arrayList) {
            doubleArray[index++] = value;
        }

        // 输出转换后的double[]数组
        for (double value : doubleArray) {
            System.out.println(value);
        }
    }
}