Java regular expressions match the telephone format
- 2020-04-01 04:28:02
- OfStack
As you all know, a regular expression is a specification that can be used for pattern matching and substitution. A regular expression is a literal pattern composed of ordinary characters (such as characters a through z) and special characters (metacharacters) to describe one or more strings to be matched when looking for a literal body. A regular expression ACTS as a template to match a character pattern to the string being searched for.
private boolean telCheck(String tel){
Pattern p = Pattern.compile("^((13\d{9}$)|(15[0,1,2,3,5,6,7,8,9]\d{8}$)|(18[0,2,5,6,7,8,9]\d{8}$)|(147\d{8})$)");
Matcher m = p.matcher(tel);
return m.matches();
}
Java regular expression validation format (mailbox, phone number)
package com.firewolf.utils;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegexValidateUtil {
public static void main(String[] args) {
System.out.println(checkEmail("14_8@qw.df"));
System.out.println(checkMobileNumber("071-3534452"));
}
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,}$";
Pattern regex = Pattern.compile(check);
Matcher matcher = regex.matcher(email);
flag = matcher.matches();
}catch(Exception e){
flag = false;
}
return flag;
}
public static boolean checkMobileNumber(String mobileNumber){
boolean flag = false;
try{
Pattern regex = Pattern.compile("^(((13[0-9])|(15([0-3]|[5-9]))|(18[0,5-9]))\d{8})|(0\d{2}-\d{8})|(0\d{3}-\d{7})$");
Matcher matcher = regex.matcher(mobileNumber);
flag = matcher.matches();
}catch(Exception e){
flag = false;
}
return flag;
}
}