List list = Arrays.asList(“北京”, “上海”, “深圳”);
CharSequence[] sq = new CharSequence[list.size()]
CharSequence[] cs = list.toArray(sq);
System.out.println(Arrays.toString(cs)); // [“北京”, “上海”, “深圳”]
简写
final CharSequence[] cs=list.toArray(newCharSequence[list.size()]);