正则验证：Pattern,Matcher

    public static void main(String[] args) {
        String regex="([a-z]{1})(\d{2})";
        String candidate = "sdsdx99sdsdc99Supr99erJau99va";
        Pattern p=Pattern.compile(regex);
        Matcher matcher=p.matcher(candidate);
        while(matcher.find()){
            int n=matcher.groupCount();
//            for(int i=0;i<=n;i++){
//                String str=matcher.group(i);
//                System.out.println(str);
//            }
            
            
            System.out.println(n);
        }
//        matcher.reset();
//        System.out.println(matcher.group());
//        
//        
//        System.out.println(matcher.replaceAll("xulu"));
        
    }