去掉字符串数组中的空值

   public static String[] removeNullValues(String[] firstArray) {

    List<String> list = new ArrayList<String>();

    for (String s : firstArray) {
        if (s != null && s.length() > 0) {
            list.add(s);
        }
    }

    firstArray = list.toArray(new String[list.size()]);
    return firstArray;
}