Handling Window based pop ups using web driver

    public void handleWindowsPopup() throws InterruptedException, AWTException {

        driver=new FirefoxDriver();

        driver.get("http://www.google.co.in");

        driver.findElement(By.id("gbqfq")).sendKeys("java download");

        Thread.sleep(3000);

        driver.findElement(By.id("gbqfb")).click();

        Thread.sleep(5000);

        driver.findElement(By.xpath("//h3[@class='r']/a")).click();

        Thread.sleep(5000);

        driver.findElement(By.xpath("//a[@class='jvdla0']")).click();

        Thread.sleep(5000);

        driver.findElement(By.xpath("//a[@class='jvdla0']")).click();

        Thread.sleep(5000);

        Robot robot=new Robot();

        robot.keyPress(KeyEvent.VK_TAB);

        Thread.sleep(2000);

        robot.keyPress(KeyEvent.VK_ENTER);

        Thread.sleep(5000);

        //driver.quit();

    }