In C#, Make any necessary modifications to the RushJob class so that it can be sorted by job number. Modify the JobDemo3 application so the displayed orders have been sorted. Save the application as JobDemo4. An example of the program is shown below: Enter job number 22 Enter customer name Joe Enter description Powerwashing Enter estimated hours 4 Enter job number 6 Enter customer name Joey Enter description Painting Enter estimated hours 8 Enter job number 12 Enter customer name Joseph Enter description Carpet cleaning Enter estimated hours 5 Enter job number 9 Enter customer name Josefine Enter description Moving Enter estimated hours 12 Enter job number 21 Enter customer name Josefina Enter description Dog walking Enter estimated hours 2 Summary: RushJob 6 Joey Painting 8 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $510.00 RushJob 9 Josefine Moving 12 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $690.00 RushJob 12 Joseph Carpet cleaning 5 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $375.00 RushJob 21 Josefina Dog walking 2 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $240.00 RushJob 22 Joe Powerwashing 4 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $330.00 The Following code has been provided: using System; using static System.Console; using System.Globalization; class JobDemo4 { static void Main() { RushJob[] jobs = new RushJob[5]; int x, y; double grandTotal = 0; bool goodNum; for(x = 0 ; x < jobs.Length; ++x) { jobs[x] = new RushJob(); Write("Enter job number "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } while(!goodNum) { Write("Sorry, the job number " + jobs[x].JobNumber + " is a duplicate. " + "\nPlease reenter "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } } Write("Enter customer name "); jobs[x].Customer = ReadLine(); Write("Enter description "); jobs[x].Description = ReadLine(); Write("Enter estimated hours "); jobs[x].Hours = Convert.ToDouble(ReadLine()); } WriteLine("\nSummary:\n"); for(x = 0; x < jobs.Length; ++x) { WriteLine(jobs[x].ToString()); grandTotal += jobs[x].Price; } WriteLine("\nTotal for all jobs is " + grandTotal.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } } class Job { protected double hours; protected double price; public const double RATE = 45.00; public Job(int num, string cust, string desc, double hrs) { JobNumber = num; Customer = cust; Description = desc; Hours = hrs; } public int JobNumber {get; set;} public string Customer {get; set;} public string Description {get; set;} public double Hours { get { return hours; } set { hours = value; price = hours * RATE; } } public double Price { get { return price; } } public override string ToString() { return(GetType() + " " + JobNumber + " " + Customer + " " + Description + " " + Hours + " hours @" + RATE.ToString("C") + " per hour. Total price is " + Price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } public override bool Equals(Object e) { bool equal; Job temp = (Job)e; if(JobNumber == temp.JobNumber) equal = true; else equal = false; return equal; } public override int GetHashCode() { return JobNumber; } } class RushJob : Job { public const double PREMIUM = 150.00; public RushJob() :base(0, "", "", 0) { } public override string ToString() { return(GetType() + " " + JobNumber + " " + Customer + " " + Description + " " + Hours + " hours @" + RATE.ToString("C") + " per hour. Rush job adds " + PREMIUM + " premium. Total price is " + Price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } public new double Hours { get { return hours; } set { hours = value; price = hours * RATE + PREMIUM; } } }

In C#, Make any necessary modifications to the RushJob class so that it can be sorted by job number. Modify the JobDemo3 application so the displayed orders have been sorted. Save the application as JobDemo4. An example of the program is shown below: Enter job number 22 Enter customer name Joe Enter description Powerwashing Enter estimated hours 4 Enter job number 6 Enter customer name Joey Enter description Painting Enter estimated hours 8 Enter job number 12 Enter customer name Joseph Enter description Carpet cleaning Enter estimated hours 5 Enter job number 9 Enter customer name Josefine Enter description Moving Enter estimated hours 12 Enter job number 21 Enter customer name Josefina Enter description Dog walking Enter estimated hours 2 Summary: RushJob 6 Joey Painting 8 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $510.00 RushJob 9 Josefine Moving 12 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $690.00 RushJob 12 Joseph Carpet cleaning 5 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $375.00 RushJob 21 Josefina Dog walking 2 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $240.00 RushJob 22 Joe Powerwashing 4 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $330.00 The Following code has been provided: using System; using static System.Console; using System.Globalization; class JobDemo4 { static void Main() { RushJob[] jobs = new RushJob[5]; int x, y; double grandTotal = 0; bool goodNum; for(x = 0 ; x < jobs.Length; ++x) { jobs[x] = new RushJob(); Write("Enter job number "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } while(!goodNum) { Write("Sorry, the job number " + jobs[x].JobNumber + " is a duplicate. " + "\nPlease reenter "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } } Write("Enter customer name "); jobs[x].Customer = ReadLine(); Write("Enter description "); jobs[x].Description = ReadLine(); Write("Enter estimated hours "); jobs[x].Hours = Convert.ToDouble(ReadLine()); } WriteLine("\nSummary:\n"); for(x = 0; x < jobs.Length; ++x) { WriteLine(jobs[x].ToString()); grandTotal += jobs[x].Price; } WriteLine("\nTotal for all jobs is " + grandTotal.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } } class Job { protected double hours; protected double price; public const double RATE = 45.00; public Job(int num, string cust, string desc, double hrs) { JobNumber = num; Customer = cust; Description = desc; Hours = hrs; } public int JobNumber {get; set;} public string Customer {get; set;} public string Description {get; set;} public double Hours { get { return hours; } set { hours = value; price = hours * RATE; } } public double Price { get { return price; } } public override string ToString() { return(GetType() + " " + JobNumber + " " + Customer + " " + Description + " " + Hours + " hours @" + RATE.ToString("C") + " per hour. Total price is " + Price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } public override bool Equals(Object e) { bool equal; Job temp = (Job)e; if(JobNumber == temp.JobNumber) equal = true; else equal = false; return equal; } public override int GetHashCode() { return JobNumber; } } class RushJob : Job { public const double PREMIUM = 150.00; public RushJob() :base(0, "", "", 0) { } public override string ToString() { return(GetType() + " " + JobNumber + " " + Customer + " " + Description + " " + Hours + " hours @" + RATE.ToString("C") + " per hour. Rush job adds " + PREMIUM + " premium. Total price is " + Price.ToString("C", CultureInfo.GetCultureInfo("en-US"))); } public new double Hours { get { return hours; } set { hours = value; price = hours * RATE + PREMIUM; } } }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

In C#,

Make any necessary modifications to the RushJob class so that it can be sorted by job number. Modify the JobDemo3 application so the displayed orders have been sorted. Save the application as JobDemo4.

An example of the program is shown below:

Enter job number 22 Enter customer name Joe Enter description Powerwashing Enter estimated hours 4 Enter job number 6 Enter customer name Joey Enter description Painting Enter estimated hours 8 Enter job number 12 Enter customer name Joseph Enter description Carpet cleaning Enter estimated hours 5 Enter job number 9 Enter customer name Josefine Enter description Moving Enter estimated hours 12 Enter job number 21 Enter customer name Josefina Enter description Dog walking Enter estimated hours 2 Summary: RushJob 6 Joey Painting 8 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $510.00 RushJob 9 Josefine Moving 12 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $690.00 RushJob 12 Joseph Carpet cleaning 5 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $375.00 RushJob 21 Josefina Dog walking 2 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $240.00 RushJob 22 Joe Powerwashing 4 hours @$45.00 per hour. Rush job adds 150 premium. Total price is $330.00

The Following code has been provided:

using System;

using static System.Console;

using System.Globalization;

class JobDemo4

{

static void Main()

{

RushJob[] jobs = new RushJob[5];

int x, y;

double grandTotal = 0;

bool goodNum;

for(x = 0 ; x < jobs.Length; ++x)

{

jobs[x] = new RushJob();

Write("Enter job number ");

jobs[x].JobNumber = Convert.ToInt32(ReadLine());

goodNum = true;

for(y = 0; y < x; ++y)

{

if(jobs[x].Equals(jobs[y]))

goodNum = false;

}

while(!goodNum)

{

Write("Sorry, the job number " +

jobs[x].JobNumber + " is a duplicate. " +

"\nPlease reenter ");

jobs[x].JobNumber = Convert.ToInt32(ReadLine());

goodNum = true;

for(y = 0; y < x; ++y)

{

if(jobs[x].Equals(jobs[y]))

goodNum = false;

}

Write("Enter customer name ");

jobs[x].Customer = ReadLine();

Write("Enter description ");

jobs[x].Description = ReadLine();

Write("Enter estimated hours ");

jobs[x].Hours = Convert.ToDouble(ReadLine());

}

WriteLine("\nSummary:\n");

for(x = 0; x < jobs.Length; ++x)

{

WriteLine(jobs[x].ToString());

grandTotal += jobs[x].Price;

}

WriteLine("\nTotal for all jobs is " + grandTotal.ToString("C", CultureInfo.GetCultureInfo("en-US")));

}

class Job

{

protected double hours;

protected double price;

public const double RATE = 45.00;

public Job(int num, string cust, string desc, double hrs)

{

JobNumber = num;

Customer = cust;

Description = desc;

Hours = hrs;

}

public int JobNumber {get; set;}

public string Customer {get; set;}

public string Description {get; set;}

public double Hours

{

get

{

return hours;

}

set

{

hours = value;

price = hours * RATE;

}

public double Price

{

get

{

return price;

}

public override string ToString()

{

return(GetType() + " " + JobNumber + " " + Customer + " " +

Description + " " + Hours + " hours @" + RATE.ToString("C") +

" per hour. Total price is " + Price.ToString("C", CultureInfo.GetCultureInfo("en-US")));

}

public override bool Equals(Object e)

{

bool equal;

Job temp = (Job)e;

if(JobNumber == temp.JobNumber)

equal = true;

else

equal = false;

return equal;

}

public override int GetHashCode()

{

return JobNumber;

}

class RushJob : Job

{

public const double PREMIUM = 150.00;

public RushJob() :base(0, "", "", 0)

{

}

public override string ToString()

{

return(GetType() + " " + JobNumber + " " + Customer + " " +

Description + " " + Hours + " hours @" + RATE.ToString("C") +

" per hour. Rush job adds " + PREMIUM +

" premium. Total price is " + Price.ToString("C", CultureInfo.GetCultureInfo("en-US")));

}

public new double Hours

{

get

{

return hours;

}

set

{

hours = value;

price = hours * RATE + PREMIUM;

}

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