Java Regular expression checksum mailbox and cell phone number

 import java.util.regex.Matcher; import Java.util.regex.Pattern; public class Checkmobileandemail {/** * Verify that the email address is correct * @param email * @return/public static Boolean Checkemail (String
	  Email) {Boolean flag = false; try{String check = "^" ([a-z0-9a-z]+[-|.]?) +[a-z0-9a-z]@ ([a-z0-9a-z]+ (-[a-z0-9a-z]+)?)
	   +[a-za-z]{2,}$ ";
	   Pattern regex = pattern.compile (check);
	   Matcher Matcher = regex.matcher (email);
	  Flag = Matcher.matches ();
	  }catch (Exception e) {flag = false;
	 return flag; 
	  /** * Verify mobile phone number * @param mobiles * @return [0-9]{5,9} */public static Boolean Ismobileno (String mobiles) {
	  Boolean flag = false; try{pattern p = pattern.compile ("^ (13[0-9]) |" ( 15[^4,D]) | (18[0,5-9])
	   d{8}$ ");
	   Matcher m = p.matcher (mobiles);
	  Flag = M.matches ();
	  }catch (Exception e) {flag = false;
	 return flag;
public static Boolean Isnum (String number) {Boolean flag = false;		  try{pattern p = pattern.compile ("^[0-9]{5}$");
		   Matcher m = p.matcher (number);
		  Flag = M.matches ();
		  }catch (Exception e) {flag = false;
		 return flag; }
}