括号拼接字符串

public static String parenthesesSpeelStr(List<String> list) {
    String str = "( ";
    String quotes=""";
    if (list != null && list.size() > 0) {
        for (int i = 0; i < list.size(); i++) {
            if (i != list.size() - 1) {
                str +=  quotes+ list.get(i)+quotes + ",";
            } else {
                str += quotes+ list.get(i)+quotes;
            }


        }
    }
    str += " )";
    return str;

}