Как проверить URL-адрес в Java

import org.apache.commons.validator.UrlValidator;

public class ValidateUrlExample{
	
	public static void main(String[] args) {
		
	    UrlValidator urlValidator = new UrlValidator();
		
	    //valid URL
	    if (urlValidator.isValid("http://www.mkyong.com")) {
	       System.out.println("url is valid");
	    } else {
	       System.out.println("url is invalid");
	    }

	    //invalid URL
	    if (urlValidator.isValid("http://invalidURL^$&%$&^")) {
	        System.out.println("url is valid");
	    } else {
	        System.out.println("url is invalid");
	    }
	    
	}
}

url is valid
url is invalid