JAva携帯番号の検証

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

/**
	 *       ，11   ，1  ，       3456789       *
	 * @param mobileNumber
	 * @return
	 */
	public static boolean checkMobileNumber(String mobileNumber) {
	    boolean flag = false;
	    try {
	        Pattern regex = Pattern.compile("^1[345789]\\d{9}$");
	        Matcher matcher = regex.matcher(mobileNumber);
	        flag = matcher.matches();
	    } catch (Exception e) {
	        e.printStackTrace();
	        flag = false;

	    }
	    return flag;
	}