Handle Multiple Windows in Selenium Webdriver in Simple ways

// It will return the parent window name as a String
String parent=driver.getWindowHandle();
// This will return the number of windows opened by Webdriver and will return Set of St//rings
Sets1=driver.getWindowHandles();
// Now we will iterate using Iterator
Iterator I1= s1.iterator();
while(I1.hasNext())
{
 
   String child_window=I1.next();
 
// Here we will compare if parent window is not equal to child window then we will close
if(!parent.equals(child_window))
{
driver.switchTo().window(child_window);
System.out.println(driver.switchTo().window(child_window).getTitle());
driver.close();
}
 
}
// once all pop up closed now switch to parent window
driver.switchTo().window(parent);
 
}
}