Question

How to check if a string contains URL in Java

Answer 1

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static void main(String[] args) {
        String s = "Check out this link: https://www.seek4info.com";
        String urlPattern = "((http|https)://)?[a-zA-Z0-9\\-\\.]+\\.[a-zA-Z]{2,3}(/[a-zA-Z0-9\\-\\.\\?\\,\\'\\/\\+&%\\$#_]*)?";

        Pattern pattern = Pattern.compile(urlPattern);
        Matcher matcher = pattern.matcher(s);

        if (matcher.find()) {
            System.out.println("URL found: " + matcher.group());
        } else {
            System.out.println("No URL found.");
        }
    }
}

 
 
/*
run:
  
URL found: https://www.seek4info.com
  
*/

 

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