list to String[]

List<String> strList = new ArrayList<String>();strList.add("aa");strList.add("bb");Object[] objs = strList.toArray();--------------如果要变成String数组，需要强转类型。String[] strs = (String[]) strList.toArray(new String[0]);-----------------也可以指定大小：String[] strs = strList.toArray(new String[strList.size()]);