Deleted SelectionFragment.java (Fragment) and replaced it with Product.java (Activity).

Added functionality to the buttons in Product.java. Clicking either
button now changes the image to a random image in the res/drawable
directory. Also added functionality to change orientation without it
changing the image. This was done by adding the line
android:configChanges="orientation | screenSize" to
AndroidManifest.xml. Added the functionality of pressing the back
button to close the app.
Deleted SelectionFragment.java (Fragment) and replaced it with Product.java (Activity).

Added functionality to the buttons in Product.java. Clicking either
button now changes the image to a random image in the res/drawable
directory. Also added functionality to change orientation without it
changing the image. This was done by adding the line
android:configChanges="orientation | screenSize" to
AndroidManifest.xml. Added the functionality of pressing the back
button to close the app.