A painting company has determined that for every 115 square feet of wall space,

Question

A painting company has determined that for every 115 square feet of wall space, one gallon of paint and eight hours of labor will be required. The company charges $18.00 per hour for labor. Write a Java program (from scratch) that allows the user to enter the wall space to be painted and the price of paint per gallon. The program should have methods that return the following data: The number of gallons of paint required The cost of the paint The hours of labor required The labor charges The total cost of the paint job Then it should display the results on the screen.

Explanation / Answer

Please follow the code and comments for description :

CODE :

import java.text.DecimalFormat; // reuired imports
import java.util.Scanner;

public class PaintingCharges { // class to run the code

private static DecimalFormat df = new DecimalFormat(".##"); // class the formats the decimal values to two digits

public static void main(String[] args) { // driver method

double wallSpace, paintPrice, paintNeeded, paintCost, labrReq, labrChrgs, totalCst; // local variables
Scanner sc = new Scanner(System.in); // scanner class to get the dat
System.out.print("Please Enter the Wall space to be Painted (in square feet) : "); //prompt for the user
wallSpace = sc.nextDouble(); // get the data

System.out.print("Please Enter the Price of the Paint per Gallon : "); // prompt for the user
paintPrice = sc.nextDouble(); // get the data

paintNeeded = paintRequired(wallSpace); // call the method to calculate the paint needed
System.out.println(" The total Paint Required is : " + df.format(paintNeeded) + " gallon(s)."); // print the data to console

paintCost = costOfPaint(paintPrice, paintNeeded); // call the method to calculate the paint cost
System.out.println("The Cost For the Paint is : $ " + df.format(paintCost));// print the data to console

labrReq = laborHours(wallSpace); // call the method to calculate the labor hrs needed
System.out.println("The Hours of Labor Required are : " + df.format(labrReq) + " Hours."); // print the data to console

labrChrgs = laborCharges(labrReq); // call the method to calculate the labor charges
System.out.println("The Labor Charges are : $ " + df.format(labrChrgs)); // print the data to console

totalCst = totalCost(paintCost, labrChrgs); // call the method to calculate the total cost
System.out.println("The Total Cost for the Paint Job is : $ " + df.format(totalCst)); // print the data to console

}

public static double paintRequired(double wallSpace) { // method to calulate the paint required
double paintReq = wallSpace / 115;
return paintReq;
}

public static double costOfPaint(double paintPrice, double paintNeeded) { // method to calulate the paint cost
double paintCst = paintNeeded * paintPrice;
return paintCst;
}

public static double laborHours(double wallSpace) { // method to calulate the labor needed
double lbrHrs = (wallSpace / 115) * 8;
return lbrHrs;
}

public static double laborCharges(double labrReq) { // method to calulate the labor charges
double lbrChrgs = labrReq * 18;
return lbrChrgs;
}

public static double totalCost(double paintCost, double labrChrgs) { // method to calulate the total cost
double totCst = paintCost + labrChrgs;
return totCst;
}
}

OUTPUT :

Please Enter the Wall space to be Painted (in square feet) : 235
Please Enter the Price of the Paint per Gallon : 50

The total Paint Required is : 2.04 gallon(s).
The Cost For the Paint is : $ 102.17
The Hours of Labor Required are : 16.35 Hours.
The Labor Charges are : $ 294.26
The Total Cost for the Paint Job is : $ 396.43

Hope this is helpful.

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