Inheritance in selenium webdriver using testng

package user;import org.openqa.selenium.By;import org.openqa.selenium.WebDriver;import org.openqa.selenium.chrome.ChromeDriver;import org.testng.annotations.Test;import org.testng.annotations.BeforeTest;public class Login {    public WebDriver driver;  @Test  public void Signin() throws Exception   {      driver.manage().window().maximize();      Thread.sleep(5000);      driver.navigate().refresh();      driver.findElement(By.xpath("//div[@id='header']/div/div/ul/li[6]/a")).click();      driver.findElement(By.id("Email")).sendKeys("test@gmail.com");      driver.findElement(By.id("password")).sendKeys("123456");      driver.findElement(By.xpath("//tr[5]/td[2]/input")).click();      Thread.sleep(5000);    }  @BeforeTest  public void BeforeTest() {     System.setProperty("webdriver.chrome.driver", "D:\\lib\\chromedriver.exe");     driver = new ChromeDriver();         driver.get("http://test.com/");  }

INHERITANCE

package user;import org.openqa.selenium.By;import org.openqa.selenium.WebDriver;import org.testng.annotations.Test;public class Addtocart extends Login {    public WebDriver driver;  @Test  public void Cart() throws Exception {      Thread.sleep(5000);      driver.findElement(By.xpath("//div[2]/div/div/a")).click();      driver.findElement(By.xpath("//a[contains(@href, '/Catalog/Featured')]")).click();      driver.findElement(By.id("//div[4]/div/a/img")).click();      driver.findElement(By.id("anchorAddToWishList")).click();*/  } public static void main(String[] args) throws Exception{      Addtocart ac = new Addtocart();      ac.BeforeMethod();          ac.Signin();      ac.Cart();  }}

When i try to call the super class method first. the sub class method is calling first. How to call super class method initially