Arrays.asList 使用注意事项

public static void main(String[] args){

        String[] strArr = new String[]{"a","b","c","d"};

        List<String> list = Arrays.asList(strArr);

        //list.add ("e");                               // 抛出 java.lang.UnsupportedOperationException

        System.out.println(strArr[0]);                 // 输出‘a’

        strArr[0] = "e";                               //list.get (0) 会变，其实还是 array

        System.out.println(strArr[0]);                 // 输出‘e’

}