Java Authentication Phone number method _java

Project needs to verify the user's mobile phone number input is legitimate, on the Internet to find several code, after testing is not through! Finally, a piece of code was found to validate the pass. The code seems to be found on a lot of advertising websites, not knowing the author! But thanks to the original author's share! The following is the authentication source code:

Copy Code code as follows:

public static Boolean Ismobileno (String mobiles) {
Boolean flag = false;
try {
13*********, 15********,18*********
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;
}