package demo02;

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

/**
 * @description: demo06
 * @author: liuyang
 * @create: 2021-09-04 18:05
 */
public class Demo06 {
    public static void main(String[] args) {
        Integer[] arr1 = {1, 2, 3, 4, 5};
        List<Integer> list1 = copyArrayToList(arr1);
        System.out.println(list1);

        String[] arr2 = {"AA", "BB", "CC"};
        List<String> list2 = copyArrayToList(arr2);
        System.out.println(list2);
    }

    /**
     * <E>用来指定E不是一个类型而是代表泛型
     * @param arr
     * @param <E>
     * @return
     */
    public static <E> List<E> copyArrayToList(E[] arr) {
        List<E> result = new ArrayList<>();
        for (E e : arr) {
            result.add(e);
        }
        return result;
    }
}