• .dsy:it.
• //www.dsy.it

this is the code I use but I can't set EXP2 to limit the number under the 256. Does anybody help?

P.S.
EXP1 validate a domain name (es. www.myserver.com)
EXP2 may validate IP address (es. 111.111.111.0)

code:

public static boolean isServerAddress(String s){    
  System.out.print(s + " ");	    

  String EXP1 ="([a-zA-Z0-9]+).([a-zA-Z0-9]+).([a-zA-Z]{2,3})|([a-zA-Z0-9]+).([a-zA-Z0-9]+).([a-zA-Z]{2,3}).([a-zA-Z]{2,3}+)";    

  String EXP2 ="([0-9]{1,3}+).([0-9]{1,3}+).([0-9]{1,3}+).([0-9]{1,3})";    

  if(Pattern.matches(EXP1, s)){      
    return true;    
  }else if(Pattern.matches(EXP2, s)){      
    return true;    
    }else{      
    return false;    
  }      
}