java 数组中文排序

public static void main(String[] args) throws Exception {
        List<String> list = new ArrayList<String>();
        String str[] = new String[] { "北京","上海", "广州", "深圳", "天津" ,"重庆", "香港", "澳门", "台湾", "伦敦"};
        for (String string : str) {
            list.add(string);
            System.out.println("sort before:" + string + "");
        }
        System.out.println("---------------------------");
        Collator coll = Collator.getInstance(Locale.CHINESE);
        Collections.sort(list, coll);
        String[] sortStr = new String[list.size()] ;
        for (int i =0;i<list.size();i++) {
sortStr[i] = list.get(i);
            System.out.println("sort after:" + list.get(i) + "");
        }
    }