exercise 4.2 ... Test output->
cannot do it by making method private but can by overriding it.

->Test output shows this:

$ java PhoneLauncher
Now upgraded to a SmartPhone - but this has been Restricted

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This phone has an Alarm:
Ringing alarm 'annoying.mp3'

This phone can play games:
Games are disabled on this phone!

..... lines edited out

exercise 3 check the brand of the phone: it is a 'iphone (restricted)'
write up 4.2