Question

Need the answer in CSharp programming not java.

Joe’s Automotive
Joe’s Automotive performs the following routine maintenance services:
• Oil change—$26.00
• Lube job—$18.00
• Radiator flush—$30.00
• Transmission flush—$80.00
• Inspection—$15.00
• Muffler replacement—$100.00
• Tire rotation—$20.00
Joe also performs other nonroutine services and charges for parts and labor ($20 per
hour). Create an application that displays the total for a customer’s visit to Joe’s.
The form should resemble the one shown in Figure 6-28 .
Figure 6-28 Automotive form

The application should have the following value-returning methods:
• OilLubeCharges —Returns the total charges for an oil change and/or a lube
job, if any.
• FlushCharges —Returns the total charges for a radiator flush and/or a transmission
flush, if any.
• MiscCharges —Returns the total charges for an inspection, muffler replacement,
and/or a tire rotation, if any.
• OtherCharges —Returns the total charges for other services (parts and labor),
if any.
• TaxCharges —Returns the amount of sales tax, if any. Sales tax is 6% and is
charged only on parts. If the customer purchases services only, no sales tax is
charged.
• TotalCharges —Returns the total charges.
The application should have the following void methods, called when the user
clicks the Clear button:
• ClearOilLube —Clears the check boxes for oil change and lube job.
• ClearFlushes —Clears the check boxes for radiator flush and transmission
flush.
• ClearMisc —Clears the check boxes for inspection, muffler replacement, and
tire rotation.
• ClearOther —Clears the text boxes for parts and labor.
• ClearFees —Clears the labels that display the labels in the section marked Summary
.

Figure 6-28 Automotive form Automotive Oil & Lube Flushes Oil hange ($26.00) Radiator Flush ($30.00) □ Lube Job ($18.00) □ Transmission Flush ($80.00) Misc Parts and Labor □ Inspection ($15.00) Parts Replace Muffler ($100.00) Labor (S) Tire Rotation ($20.00) Summary Services & Labor Parts Tax (on parts) Total Fees Calculate Total Clear Exit

Answer 1

Below is the solution:

code:

using System;
using System.Windows.Forms;

namespace AutomotiveForm
{
    public partial class frmMain : Form
    {
        // Declare constant variables with value that cnnot change
        const decimal OIL_CHANGE = 26.00m;
        const decimal LUBE_JOB = 18.00m;
        const decimal RADIATOR_FLUSH = 30.00m;
        const decimal TRANSMISSION_FLUSH = 80.00m;
        const decimal INSPECTION = 15.00m;
        const decimal REPLACE_MUFFLER = 100.00m;
        const decimal TIRE_ROTATION = 20.00m;
        const decimal TAX = 0.06m; //6% tax
        private decimal total = 0m; //total value to 0 initialize
        decimal serviceslabor;
        decimal parts;
        decimal finaltax;
        decimal fees;

        public frmMain()
        {
            InitializeComponent();
        }

        //checked event for the oilchangeCheckbox that will add the total
        private void oilchangeCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += OIL_CHANGE;
        }
        //checked event for the lubejobCheckbox that will add the total
        private void lubejobCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += LUBE_JOB;
        }
        //checked event for the radiatorflushCheckbox that will add the total
        private void radiatorflushCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += RADIATOR_FLUSH;
        }
        //checked event for the transmissionflushCheckbox that will add the total
        private void transmissionflushCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += TRANSMISSION_FLUSH;
        }
        //checked event for the inspectionCheckbox that will add the total
        private void inspectionCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += INSPECTION;
        }
        //checked event for the replacemufferCheckbox that will add the total
        private void replacemufferCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += REPLACE_MUFFLER;
        }
        //checked event for the tirerotationCheckbox that will add the total
        private void tirerotationCheckbox_CheckedChanged(object sender, EventArgs e)
        {
            total += TIRE_ROTATION;
        }
        //total button event that will calulate the total, tax,
        private void totalButton_Click(object sender, EventArgs e)
        {
            serviceslabor = decimal.Parse(laborTextbox.Text) + total;
            parts = decimal.Parse(partsTextbox.Text);
            finaltax = TAX * parts;
            MessageBox.Show(finaltax.ToString());
            fees = total + parts + finaltax + serviceslabor;
            lblserviceslabor.Text = serviceslabor.ToString("n2");
            lblParts.Text = parts.ToString("n2");
            lblTax.Text = finaltax.ToString("n2");
            lblTotalFees.Text = fees.ToString("n2");
        }
        //close butto event
        private void exitButton_Click(object sender, EventArgs e)
        {
            this.Close(); //close the form
        }
        //clear button event
        private void clearButton_Click(object sender, EventArgs e)
        {
            //clears all the label, textbox, and the unchech the checkbox
            total = 0m; //set the total to 0
            lblserviceslabor.Text = String.Empty;
            lblParts.Text = String.Empty;
            lblTax.Text = String.Empty;
            lblTotalFees.Text = String.Empty;
            oilchangeCheckbox.Checked = false;
            lubejobCheckbox.Checked = false;
            radiatorflushCheckbox.Checked = false;
            transmissionflushCheckbox.Checked = false;
            inspectionCheckbox.Checked = false;
            replacemufferCheckbox.Checked = false;
            tirerotationCheckbox.Checked = false;
        }
    }
}

output:

Joe's Automotive Oil and Lube Flushes Oil Change ($26.00) Lube Job ($18.00) Radiator Flush ($30.00) Transmission Flush ($80.00) Misc Parts and Labor Inspection ($15.00) Replace Muffler ($100.00) Tire Rotation ($20.00) Parts (S): 20 Labor (S): 10 Summary Services and Labor 399.00 Parts: 20.00 Tax (On Parts): 120 Total Fees: 809.20 Calculate Total Clear Exit