Why we only using Set collection to store no of windows

[Balaji Singh .Y]

Hi All,

Why we are using the Set Collection for storing number of child  windows ? And why  don`t  we use any other collection ?

public class Chilld_Window_Close_Using_Set {

/**

 * @param args

 */

public static void main(String[] args) {

// TODO Auto-generated method stub

// TODO Auto-generated method stub

WebDriver driver = new FirefoxDriver();

driver.manage().timeouts().implicitlyWait(4, TimeUnit.SECONDS);

driver.get("http://rediffmail.com");

//get the parent window handle name 

String parentHandle = driver.getWindowHandle();

System.out.println("Parent Window :" + parentHandle);

// get all the window handles and assign it to a set

// It will include child window and parentwindow

Set<String> windowHandles = driver.getWindowHandles();

System.out.println("No of Window Handles  or currently opened browsers: " + windowHandles.size());

     

// remove the parent handle from the set

windowHandles.remove(parentHandle);

//Because we removed only the parent handle now only child handles will be thier in 

// the set

// Now iterate through the child window and close the child window

for (String winHandle : windowHandles) {

driver.switchTo().window(winHandle);

System.out.println("Child Handle : " + winHandle);

driver.close();

}

        

// switching back to parent window

driver.switchTo().window(parentHandle);

//closing the parent browser

System.out.println("Closing the parent Browser :");

driver.close();

}

}

With Regards, 

BALAJI SINGH .Y

[Shameem Akhtar]

Hi Balaji,

We use Set collection for storing window ids because Set doesn't allow duplicate objects. Since window ids are always unique for each window, we use Set to store them.

Hope it helps..

Regards,

Shameem

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Best Regards,

Shameem Akhtar

Mobile # +917666339589

[Balaji Singh .Y]

Hi Shameem,

As we all know that Windows ID`s will be unique then why we have to use set, we can go with List only right ?

I am still not aware why everybody uses set .

With Regards,

Balaji Singh

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BALAJI SINGH .Y

[⇜Krishnan Mahadevan⇝]

Balaji,

As we all know that Windows ID`s will be unique then why we have to use set, we can go with List only right ?
I am still not aware why everybody uses set .

What do you mean by this ? Its not a choice that the Selenium library consumers make. The WebDriver API contract itself has been written such that it returns back a Set of Window Handles. So you adhere to the contract and consume the window handles as a set.

Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"
My Scribblings @ http://wakened-cognition.blogspot.com/

My Technical Scribbings @ http://rationaleemotions.wordpress.com/

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[Balaji Singh .Y]

Got it Krishnan. Thanks a lot for your advice on this.

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BALAJI SINGH .Y