ElectronicInterfaces.md

blatantly stolen adapted from https://gist.github.com/AdamSheaffer/ec09a8b8a1edabbfc4d2ca7f8719abd7

Classy Electronics

You've just started working for a boutique electronic company and you've been tasked with modeling their new line of record players.

Step 1:

The company's most basic product line is simple turntables that can support rpm speeds of 33, 45, and 78 Create a TurnTable class with these properties and methods:

Properties

• A double called CurrentSpeed
• A boolean property called IsPlaying that tracks whether the motor is running

Methods

• An Play method that sets the IsPlaying property to true
• A Stop method that sets the IsPlaying property to false

Step 2:

The company has decided to start a line of integrated turntables. They'd like a new product that has speakers built right into the record players This product has the same turntable built in, so create a subclass of Turntable with these additional properties and Methods:

Properties

• An int called Volume

Methods

• A method called VolumeUp that increments Volume by 1
• A method called VolumeDown that decrements Volume by 1

Step 3:

Research has shown that these all-in-one record players are a big hit. The company wants to introduce a new product. It still has the turntable and speakers, but this time they want to have a built in AM/FM radio. Create a subclass of your previous class with the following properties and methods:

Properties

• A double called CurrentFrequency
• A List of doubles called FavoriteStations
• An Boolean called IsRadioOn

Methods

• A method called AddFavorite that adds a new station to FavoriteStations
• A method called RemoveFavorite that removes a station from FavoriteStations
• A method called TurnRadioOn that sets IsRadioOn to true
• A method called TurnRadioOff that sets IsRadioOn to false

Step 4:

Surprisingly many of the customers of this boutique electronic company really love listening to NPR - a lotta Steve Inskeep fans out there. Unfortunately, a heavy record player is a bit too bulky to carry out onto the veranda. What they really want is a radio with speakers, but without the turntable. How can we make this happen?

Step 5:

Our company needs to test it's products. We'd like to test in bulk. We have two specialized quality control teams. One for turntables and one for radios. Create two methods TestTurnTables that accepts a list of turntables, and TestReadios that accepts a list of radious. These methods should exercise the features of each type of device.

Note Some objects will need to be tested by each team.