Solution Maker

Regex Pattern Program for Validating Length           Here we are going to check whether the given String has only certain number length using the Regex Pattern matching logic in Java. The steps are Logical Theory : Check for Length: Ensure the number has exactly 10 digits. Regex Pattern for Validation :      1. Regex: ^.{10}$      2. Explanation:               ^ asserts the start of the string.               .{10} matches exact length10.               $ asserts the end of the string. Code : package com.dinatechy.challange; import java.util.regex.Matcher; import java.util.regex.Pattern; public class LenghtPattern { public static void main(String[] args ) { // Pattern for validate length String content = "DinaTechy" ; // length - 9 Pattern pattern = Pattern. compile ( "^.{9}$" ); Matcher matcher ...

 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...