下面代码的运行结果是

一.

package com.freddy;

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

public class T1 {
    public static void main(String[] args) {
        List<String>  list = Arrays.asList(new String[]{"数学","语文"});
        list.add("英语");
        System.out.println(list.size());
    }
}

/* 报错内容:
 * Exception in thread "main" java.lang.UnsupportedOperationException
 * at java.util.AbstractList.add(Unknown Source)
 * at java.util.AbstractList.add(Unknown Source)
 * at com.freddy.T1.main(T1.java:9)
 */

二.

 

posted @ 2019-09-30 10:42  唐胜伟  阅读(223)  评论(0)    收藏  举报