Refresh Program Selenium Webdriver

package collection;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class Refreshexample {
public static void main(String args []) throws InterruptedException {
WebDriver driver=new FirefoxDriver();
String url="https://seleacademy.blogspot.com/";
driver.get(url);
driver.navigate().refresh();

}
}