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In DeskTop.h

Declare two exception classes:

NoPowerException. This exception will be thrown when the user turns on a computer that does not connect to power outlet. This

class is an empty class.

LackComponentException. This exception will be thrown when the user turns on a computer that does not have a RAM, a hard drive,

or a video card. This class has a private string variable, missingComponent, and a public accessor getMissingComponent$()$ that will

return the value stored by this variable. The class also has two constructors: a default constructor that sets missingComponent as

"essential components"; an overloaded constructor that take a parameter of string as input and set the value of missingComponent

In DeskTop.cpp

Provide the implementation of the member functions of the LackComponentException class.

Complete the turnOn$()$ function of the DeskTop class. This function will first check whether any of the three boolean variables, RAM,

hardDrive, videoCard is false. If one or more of these variable values are false a LackComponentException exception initial ized

with a string encoding the missing component information will be thrown. For example, if only RAM is false, the string is "RAM", and if

only hardDrive is false, the string is "hard drive". If both RAM and hardDrive are false, the string will be "RAM, hard drive", and if all three

variables are false, the string will be "RAM, hard drive, video card". If all the above variables are true, the function will check whether

the power is provided. If there is no power $($i$.$e$.,$ power$==$false$),$ a NoPowerException is thrown.

In main.cpp

Complete the main$()$ function to handle the potential exceptions thrown when turning on a desktop computer. Specifically, after a DeskTop

computer is created based on user input, the computer will be turned on$.$ If a LackComponentException object is thrown and caught, the

program will output the following message

Exception: No $[$missing component$]!$

If a NoPowerException object is thrown and caught, the program will output the following message

Exception: power is not on$,$ please check your connection to power outlet.

Ex: if the user enters

$0,1,0,0$

the program will output

Exception: No RAM, video card!

if the user enters

$1,1,1,1$

the program will output

Computer is starting $...$

Current file: main.cpp

#include "DeskTop.h$"$

int main$()$

$4\{$

int hasRAM, hasHardDrive, hasVideoCard, hasPower;

cin $>>$ hasRAM $>>$ hasHardDrive $>>$ hasVideoCard $>>$ hasPower;

$//$TODO: put the following code into the proper exception handling to handle the potential exceptions

DeskTop computer$1($hasRAM$,$ hasHardDrive, hasVideo$($ard$,$ hasPower$)$;

computer$1.$turnOn$()$;

return $0$ ;

$\}$

return $0$ ;

Current file: DeskTop.h

Current file: DeskTop.cpp

$1$ #include "DeskTop.h$"$

$3//$TODO: Implement the member functions of the LackComponentException class

void DeskTop: :turnOn$()$

$//$TODO: complete the implementation of the turnOn$()$ function to handle different exception cases

cout $$ "Computer is starting $..."$ endl;