1. Using the driver.get() method in the ActivityLesson02 constructor, load https://www.packt.com:

driver.get("https://www.packt.com");

2. Using the manage().window().setSize(Dimension) method, resize the current window:

driver.manage().window().setSize(new Dimension(300,500));

3. Using the manage().window().getSize() method, verify that the size of the window is equal to the size of the one that you set in step 2:

if (driver.manage().window().getSize().getHeight() == 300
&& driver.manage().window().getSize().getWidth() == 500 )

4. Using the System.out.println method, display messages that indicate whether the verification was successful:

{
                System.out.println("Load script worked, the
window was resized");
            }
            else {
                System.out.println("Something went wrong
with the script, the window was not resized to the desired
size");
            }

5. Using the manage().window().maximize() method, maximize the current window:

driver.manage().window().maximize();

6. Using the manage().window().getSize() method, verify that the size of the window is different from the one that you set in step 2.

if (driver.manage().window().getSize().getHeight() != 300
&& driver.manage().window().getSize().getWidth() != 500 )
driver.manage().window().maximize();

7. Using the System.out.println method, display messages that indicate whether the verification was successful:

{
                System.out.println("Load script worked, the
window was resized");
            }
            else {
                System.out.println("Something went wrong
with the script, the window was not resized");
            }

8. Using the driver.getWindowHandle() method, save the handle of the parent window in a String variable:

String parentWindowHandle = driver.getWindowHandle();

9. Using the driver.switchTo().window(""); method, switch the focus to the another window:

driver.switchTo().window("TwitterWindow");

10. Using the System.out.println method, display a message that indicates whether the focus is on the new window:

{
                System.out.println("The script worked, the
window title is Frame Twitter");
            } else {
                System.out.println("Something went wrong,
the window title is NOT Frame Twitter");
            }

11. Using the driver.close() method, close the new window:

driver.close();

12. Compile and run the script.