Greeting$()$: Greeting$()$ is called from the main method. It asks the customer for

To enhance their services Palette Perfection company would like to add the paint

estimator feature to their application to calculate the total cost of the paint job. The paint

Company has determined that for every $115$ square feet of wall space, one gallon of paint

and $8$ hours of labor will be required. The company charges $$18$ per hour for labor and

$$53\mathrm{.}35$ per gallon.

As before, the application starts by displaying a greeting message and asks for the name

of the customer. All subsequent messages need to address the customers by their names.

The application will ask the customer for the number of rooms to be painted. For each

room, the application will ask the customer to provide the total surface area in square feet

of wall space to be painted. The application will then calculate the following

The total surface area to be painted,

The number of paint gallons required to paint the total surface area.

The total cost for the paint gallons

The total hours of labor,

The cost of labor for the painting job, and

The overall cost of the painting job.

The application will then display a report addressing the customer by their name and

listing all calculated values

Before the application quits, it will issue a customized "thank you" message to the

customer. The application needs to validate all numeric values input by customer and in

case of wrong input value the application must give an error message and ask the

customer to input the values again. Your program needs to include at least the following

methods:

their name and prints a greeting message and returns the name to the main

method.

getNumRoom$()$: getNumRoom$()$ takes in the customer's name as a string and

reads from the customer the number of rooms that the customer wants to paint.

If the customer enters a number less than $1,$ getNumRoom$()$ will repeatedly ask

the customer for a valid value and only returns a valid value for the number of

rooms.

getRoomArea$()$: getRoomArea$()$ takes in as a parameter a string representing the

message to be printed to the user customer and reads in the surface area of the

wall space for a given room. If the customer enters an invalid value, getRoomArea

will repeatedly ask the customer for a valid value and only returns a valid value

for the surface area of the wall space.

getRoomDetails$()$: getRoomDetails$()$ takes the customer's name as an input

parameter as a string and calls getNumRoom$()$ to read in the number of rooms.

Then it asks the customer for the surface area of each room using

getRoomArea$().$ getRoomDetails$()$ returns the total surface area of all the rooms

entered by the customer.

displayReport$()$: Takes the following values as parameters

the total area of the wall space,

the total number of gallons required,

the total cost for purchasing the gallons,

the total number of labor hours

the total cost for labor

the overall cost of the painting job

The method will print a report listing all the previous values addressing the customer by name

thankYou$()$: takes in the name of the customer as an input parameter and prints a

customized thank you message to the customer.