Two browsers are opening automatically in selenium

The following is my code. One browser opens blank and another opens google. I am using the latest version of chrome driver. Thanks in advance.

public class Trials {

public static void main(String[] args) throws InterruptedException 
{


    System.setProperty("webdriver.chrome.driver","C:\\Selenium\\chromedriver.exe");

    WebDriver driver = new ChromeDriver();

    driver.get("https://www.google.com");
    Thread.sleep(3000);
    driver.close();

}

}