//TEST
        String[] telNo = new String[]{
                "13421159889","13421159888","13421158888","13421158734"};
        for(int i=0;i<telNo.length;i++)
            System.out.println(matchType(telNo[i]));
          
 
       
    
    
    /**
     * 6、8、9的情况,跟升降序的情况没有考虑.
     * @param telNo
     * @return
     */
    public static String matchType(String telNo){
        String rtn = telNo;
        
        String[] match = {"ABBA","AABB","ABBB","AAAB","AABA","ABAA","AAAA","AAA","ABCD"};
        Arrays.sort(match);
        List list = Arrays.asList(match);
                        
        int len = 0;//替换位当前位置
        int loop = 1;//开始替换位
        int step = 0;
        String compare = "";
        String pat = "ABCD";
        while(loop<=11){
            if(compare.indexOf(telNo.substring(len,len+1)) == -1){
                rtn = rtn.replaceAll(telNo.substring(len,len+1), pat.substring(step,step+1));
                step++;
                compare += telNo.substring(len,len+1);
            }
            len++;
            
            //替换位置下移一位.
            if(len>=11 || step>=4){
                //查找匹配位置.
                Matcher m = Pattern.compile("A[ABCD]+$").matcher(rtn);
                if(m.find() && list.indexOf(m.group(0)) != -1){
                    return m.group(0);
                }
                //还原
                len = loop++;
                step = 0;
                compare = "";
                rtn = telNo;
            }
        }
    
        return rtn;
    }