Regex Pattern for Mobile Number in Java 2024 - Java Technical Interview
Regex Pattern for Mobile Number Here we are going to check whether the given String is contain mobile number or not using the Regex Pattern matching logic in Java. The steps are Logical Theory : Check for Length : Ensure the number has exactly 10 digits (or more if including a country code). Check for Digits : Ensure that all characters are numeric. Regex Pattern for Validation : Regex: ^\d{10}$ Explanation: ^ asserts the start of the string. \d{10} matches exactly 10 digits. $ asserts the end of the string. Code : package com.dinatechy.challange; import java.util.regex.Matcher; import java.util.regex.Pattern; public class MobileNoPattern { public static void main(String[] args ) { // Mobile number Pattern // length should be 10 // must be digits String mobileNo = "9876543210" ; Pattern pattern = Pattern. compile ( "^\\d{10}$" ); // d refers to only digit's // 10 length Matcher matcher = pattern .matcher( mobileN...