How to close child browser window in Selenium WebDriver using Java

Question

After I switch to a new window and complete the task, I want to close that new window and switch to the old window,

so here i written like code:

// P         


        

Answer 1

The logic you've used for switching the control to popup is wrong

 for (String winHandle : driver.getWindowHandles()) {
        driver.switchTo().window(winHandle);
    }

How the above logic will swtich the control to new window ?

---

Use below logic to switch the control to new window

// get all the window handles before the popup window appears
 Set beforePopup = driver.getWindowHandles();

// click the link which creates the popup window
driver.findElement(by).click();

// get all the window handles after the popup window appears
Set afterPopup = driver.getWindowHandles();

// remove all the handles from before the popup window appears
afterPopup.removeAll(beforePopup);

// there should be only one window handle left
if(afterPopup.size() == 1) {
          driver.switchTo().window((String)afterPopup.toArray()[0]);
 }

// Perform the actions on new window

  **`//Close the new window`** 
    driver.close();

//perform remain operations in main window

   //close entire webDriver session
    driver.quit();