List集合采用of方法添加元素

public class DemoJdk9 {
    public static void main(String[] args) {
        List<String> list=List.of("a","c","b","a","d");
        System.out.println(list);
    }

}

   public static void main(String[] args) {
        List<String> list=List.of("a","c","b","a","d");
        System.out.println(list);
    }