$1.(30$ points$)$ Transform the following UML diagram to a TV class.

TV

channel: int

volumeLevel: int

on: bool

$+$TV$()$

$+$turnOn$()$: void

$+$turnOff$()$: void

$+$setChannel$($newChannel: int$)$: void

$+$setVolume$($newVolumeLeve: int$)$: void

$+$channelUp$()$: void

$+$channelDown$()$: void

$+$volumeUp$()$: void

$+$volumeDown$()$: void

The current channel $(1$ to $120)$ of this TV$.$

The current volume level $(1$ to $7)$ of this TV$.$

Indicates whether this TV is on$/$off$.$

Constructs a default TV object.

Turns on this TV$.$

Turns off this TV$.$

Sets a new channel for this TV$.$

Sets a new volume level for this TV$.$

Increases the channel number by $1.$

Decreases the channel number by $1.$

Increases the volume level by $1.$

Decreases the volume level by $1.$

This class should include three public data members, int channel, int volumeLevel, and bool on

and nine public functions. The function TV$()$ is a constructor, turnOn$()$ turns the TV on$,$

turnOff$()$ turns the TV off, setChannel$($int newChannel$),$ sets a new channel for this TV$,$

setVolume$($int newVolumeLevel$),$ sets a new volume level for this TV$,$ channelUp$()$ increases

the channel number by one, channelDown$()$ decreases the channel number by one,

volumeUp$()$ increases the volume level by one, channelDown$()$ decreases the volume level by

one.

Do the following:

$1.$ Write the TV class definition in a file named Tv$.$h

$2.$ Write the class implementation in Tv$.$cpp

$3.$ Your class should include a test driver function main$().$ This main$()$ should declare two TV

objects. One invokes channel functions. The other invokes volume levels. Display channel

and volumeLevels for each TV$.$ Make sure your program is working correctly.

$2$

$1\mathrm{.}1$ Tv$.$h

$3$

$1\mathrm{.}2$ Tv$.$cpp

$4$

$1\mathrm{.}3$ main

$5$

$1\mathrm{.}4$ Test run