java正则表达式验证格式

代码如下，已做过验证:

 import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 使用正则表达式验证输入格式
 * @author 
 *
 */
public class RegexValidateUtil {
public static void main(String[] args) {
            System.out.println(checkEmail("[e-mail]"));
            System.out.println(checkMobileNumber("18911729111"));
        }
/**
 * 验证手机号码是否合法
 * @param
 * @return
 */
public static boolean checkMobileNumber(String mobileNumber){
boolean flag = false;
try{
            Pattern regex = Pattern.compile("^(((13[0-9])|(15([0-3]|[5-9]))|(18[0,5-9]))\\d{8})|(0\\d{2}-\\d{8})|(0\\d{3}-\\d{7})$");
            Matcher matcher = regex.matcher(mobileNumber);
            flag = matcher.matches();
        }catch(Exception e){
            flag = false;
        }
return flag;
    }

/**
 * 验证邮箱是否合法
 * @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;
    }