Facebook Login Script in Web Driver

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
public class FaceBookLogin {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver","c:\\chromedriver.exe");
    WebDriver driver = new ChromeDriver();
    driver.get("https://www.facebook.com/");
    WebElement txtname = driver.findElement(By.name("email"));
    txtname.sendKeys("type your emailid ");
    WebElement txtpass = driver.findElement(By.name("pass"));
    txtpass.sendKeys("type your password");
    WebElement btn = driver.findElement(By.id("loginbutton"));
    btn.click();
  }
}