The window handle is a one-of-a-kind identifier that contains the addresses of all of the windows. Consider it a window pointer that returns the string value. Each browser will presumably have its own window handle. This window handle function aids in the retrieval of all window handles.
Syntax:
get.windowhandle(): This function is used to retrieve the current window's handle.
get.windowhandles(): This function is useful for retrieving the handles of all the windows that have been opened.
set: This method allows you to set the window handles as a string.
set<string> set= driver.get.windowhandles()
switch to: This method aids in the switching of windows.
action: This method aids in the execution of specific window actions.
Let us consider an example code to understand better. We will open the website of InterviewBit and then click on all the links available on the web page. Then, we will switch from the parent window to multiple different child windows and then switch back to the parent window at last.
package SeleniumPackage;
import java.util.Iterator;
import java.util.Set;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class WindowHandle_Demo {
public static void main(String[] args) throws Exception {
System.setProperty("webdriver.chrome.driver", "C:\\Users\\user\\Downloads\\selenium\\chromedriver_win32\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.manage().window().maximize();
// Loading the website
driver.get("http://www.interviewbit.com/");
String parent=driver.getWindowHandle(); // storing the parent window name as a string
List<WebElement> links = driver.findElements(By.tagName("a")); // storing the list of all the elements having an anchor tag
Iterator<WebElement> it = links.iterator();
// Iterating over the list elements one by one and clicking all the links to open new child windows
while(it.hasNext()){
it.next().click();
}
Set<String> s = driver.getWindowHandles(); // Storing the list of all the child windows
Iterator<String> I1= s.iterator();
// Iterating over the list of child windows
while(I1.hasNext())
{
String child_window=I1.next();
if(!parent.equals(child_window))
{
driver.switchTo().window(child_window);
System.out.println(driver.switchTo().window(child_window).getTitle());
driver.close();
}
}
//switch to the parent window
driver.switchTo().window(parent);
}
}
In the above code, we open the landing page of interviewbit and then find all the elements having the anchor tag and click them to open multiple child windows. Then, we iterate over each of the child windows and print them as a string. Finally, having traversed over the entire list, we break from the loop and switch back to the parent window.
