Program to login into a webpage using selenium Webdriver

Login into a page with username text box having id as loginid,password id as password and button id as button.

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


public class Login {
     public static void main(String[] args) throws Exception {
               WebDriver driver = new FirefoxDriver();
            driver.get("http://");
            WebElement id = driver.findElement(By.id("loginID"));
            WebElement pass = driver.findElement(By.id("password"));
            WebElement button = driver.findElement(By.id("Button"));
            
            id.sendKeys("Cheese");
            pass.sendKeys("password");
            button.click();
            
            
     }
            
}