Question

Here I want validation for the mobile number start with +91 and after 10 digit number.
I am add the +91 pincode into edittext like:

edtmobile.append("+91(-)"); so when display the edittext(UI) there is already +91and after edit 10 digit number

I am using Reg Ex like :

String regExPhone = "(+91(-)?|91(-)?|0(-)?)?[0-9]{10}";

but got the error like :

E/AndroidRuntime( 1411): java.util.regex.PatternSyntaxException: Syntax error U_REGEX_RULE_SYNTAX near index 2:
E/AndroidRuntime( 1411): (+91(-)?|91(-)?|0(-)?)?[0-9]{10}
E/AndroidRuntime( 1411):   ^

Please let me know where I do mistake, and there is another solutions for same.

Thanks.

Answer 1

+ is a special character in regex and needs escaping

try

String regExPhone = "(\+91(-)?|91(-)?|0(-)?)?[0-9]{10}";

you also do not need to group single characters to make them optional, so

String regExPhone = "(\+91-?|91-?|0-?)?[0-9]{10}";

would be the same.