Write the implementation (.cpp file) of the GasTank class of the previous exerci
ID: 3773660 • Letter: W
Question
Write the implementation (.cpp file) of the GasTank class of the previous exercise. The full specification of the class is:
A data member named amount of type double .
An data member named capacity of type double .
A constructor that accepts a parameter of type double . The value of the parameter is used to initialize the value ofcapacity.
A function named addGas that accepts a parameter of type double . The value of the amount instance variable is increased by the value of the parameter . However, if the value of amount is increased beyond the value of capacity, amount is set tocapacity.
A function named useGas that accepts a parameter of type double . The value of the amount data member is decreased by the value of the parameter . However, if the value of amount is decreased below 0, amount is set to 0.
A function named isEmpty that accepts no parameters and returns a boolean value . isEmpty returns true if the value ofamount is less than 0.1, and false otherwise.
A function named isFull that accepts no parameters and returns a boolean value .. isFull returns true if the value of amount isgreater than capacity-0.1, and false otherwise.
A function named getGasLevel that accepts no parameters . getGasLevel returns the value of the amount data member.
Explanation / Answer
Solution:
GasTank::GasTank(double theAmount)
{
capacity=theAmount;
}
void GasTank::addGas(double amountToAdd)
{
amount+=amountToAdd;
if (amount>capacity)
amount=capacity;
}
void GasTank::useGas(double amountToUse)
{
amount-=amountToUse;
if (amount<0)
amount=0;
}
bool GasTank::isEmpty()
{
return (amount<0.1) ? 1 : 0;
}
bool GasTank::isFull()
{
if (amount>(capacity-0.1))
return 1;
else
return 0;
}
double GasTank::getGasLevel()
{
return amount;
}
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