Paint Job Estimator A painting company has determined that f

Paint Job Estimator

A painting company has determined that for every 112 square feet of wall space, one gallon of paint and eight hours of labor will be required. The company charges $35.00 per hour for labor. Write a program that asks the user to enter the square feet of wall space to be painted and the price of the paint per gallon. The program should display the following data:

• The number of gallons of paint required
• The hours of labor required
• The cost of the paint
• The labor charges
• The total cost of the paint job.

You must design functions for main, gallons required, labor required, cost of the paint, labor charges, and total cost of the paint job. Other functions can be used if needed.

Solution

import java.util.Scanner;

import java.text.DecimalFormat;

public class PaintJobEstimator

{

public static void main(String[] args)

{

Scanner input = new Scanner(System.in);

int numberOfRooms;

double pricePerGallon;

System.out.println(\"Enter the number of rooms?\");

numberOfRooms = input.nextInt();

System.out.println(\"Enter the price of paint per gallon\");

pricePerGallon = input.nextDouble();

int roomCount = 1;

double totalWallSpace = 0;

while (roomCount <= numberOfRooms)

{

System.out.println(\"Room No.\" + roomCount);

System.out.println(\"Enter wall Space\");

double wallSpaceForRoom = input.nextInt();

roomCount += 1;

totalWallSpace += wallSpaceForRoom;

}            

double paintGallonsRequired = gallonsOfPaint(totalWallSpace);

double laborHoursRequired = hoursOfLaborRequired(totalWallSpace);

double laborCost = laborCharges(laborHoursRequired);

double paintCost = costOfPaint(paintGallonsRequired, pricePerGallon);

totalCostOfPaintJob(laborCost, paintCost, totalWallSpace);

}

public static double gallonsOfPaint(double wallSpace)

{

double paintGallons = wallSpace/115;

return paintGallons;

}

public static double hoursOfLaborRequired(double wallSpace)

{

double laborHours = (wallSpace/115) * 8;

return laborHours;

}

public static double costOfPaint(double gallons, double price)

{

double paintCost = gallons * price;

return paintCost;

}

public static double laborCharges(double hours)

{

double totalLaborCharges = hours * 18;

return totalLaborCharges;

}

public static void totalCostOfPaintJob(double laborCost, double paintCost, double totalWallSpace)

{

DecimalFormat twoDecimal = new DecimalFormat(\"#,##0.00\");

double totalCost = laborCost + paintCost;

System.out.println(\"Total Wall Space: \" + totalWallSpace);

System.out.println(\"Labor cost: $\" + twoDecimal.format(laborCost));

System.out.println(\"Paint cost: $\" + twoDecimal.format(paintCost));

System.out.println(\"The totalcost of the paint job is: $\" + twoDecimal.format(totalCost));

}                            

}