WebDriver.getWindowHandle() method

Question

I\'m new to Selenium learning. WebDriver.getWindowHandle() documentation is not very clear to me and the example is not working as given in the book, so I thought of confirm

Answer 1

I have used this code for my project

String oldTab = driver.getWindowHandle();

public static void switchingToNewTabUsingid(WebDriver driver,WebDriverWait wait,String id,String oldTab)
    {
        wait.until(ExpectedConditions.elementToBeClickable(By.id(id)));
        driver.findElement(By.id(id)).click();
        ArrayList newTab = new ArrayList(driver.getWindowHandles());
        newTab.remove(oldTab);
        driver.switchTo().window(newTab.get(0));
    }

//Perfrom Opeartion here on switched tab

public static void comingBackToOldTab(WebDriver driver,String oldTab)
    {
        driver.close();
        driver.switchTo().window(oldTab);
    }