This Example describes the way of matching Zip code with the regular expression .For this we are going to make program named Matching_Zipcode.java.

Matching Zip code using regular expression

     

This Example describes the way of matching Zip code with the regular expression .For this we are going to make program named Matching_Zipcode.java. The steps involved in program Matching_Zipcode.java are described below:-

String zipCode = "\\d{5}(-\\d{4})?":-This is the regular expression use to match with Zip code.

matchZip("45643-44435"):-Defining Zip code which is to be matched with the regular expression

Matching_Zipcode.java

import java.util.regex.Matcher; import java.util.regex.Pattern; public class Matching_Zipcode {   public static void main(String args[]) {   matchZip("45643");   matchZip("45643-44435");   }   public static boolean matchZip(String zip) {   boolean retrival = false;   String zipCode = "\\d{5}(-\\d{4})?";   retrival = zip.matches(zipCode);   String msg = "NO MATCH: Zip code is:" + zip +   "\n regex for the Zip code is: " + zipCode;   if (retrival) {   msg = "MATCH : Zip code is :" + zip +    "\n regex for the Zip code is : " + zipCode;   }   System.out.println(msg + "\n");   return retrival;   } }

Output of the program:-

MATCH : Zip code is :45643 regex for the Zip code is : \d{5}(-\d{4})? NO MATCH: Zip code is:45643-44435 regex for the Zip code is: \d{5}(-\d{4})?

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