Question

C#

Create an application named JobDemo that declares and uses Job objects. The Job class holds job information for a home repair service. The class has five properties that include:

• JobNumber - The job number
• Customer - The customer name
• Description - The job description
• Hours - The estimated hours
• price - The price for the job

Create a constructor that requires parameters for all the data except price. Include auto-implemented properties for the job number, customer name, and job description, but not for hours or price; the price field value is calculated as estimated hours times $45.00 ($45.00 / hour) whenever the hours value is set.

Also create the following methods for theJob class:

• An Equals() method that determines two Jobs are equal if they have the same job number
• A GetHashCode() method that returns the job number
• A ToString() method that returns a string containing all job information in the following format:

  Job 111 Smith exterior paint 20 hours @$45.00 per hour. Total price is $900.00 

The JobDemo application declares a few Job objects, sets their values, and demonstrates that all the methods work as expected.

In order to prepend the $ to currency values, the program will need to use the CultureInfo.GetCultureInfo method. In order to do this, include the statement using System.Globalization; at the top of your program and format the output statements as follows: WriteLine("This is an example: {0}", value.ToString("C", CultureInfo.GetCultureInfo("en-US")));

Answer 1

Job.cs :

//namespace
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Globalization;
//application namespace
namespace JobDemo
{
class Job //C# class
{
//auto-implemented properties
public int JobNumber { get; set; }
public string Customer { get; set; }
public string Description { get; set; }
private int hours;
private double price;

public int Hours
{
set
{
this.hours = value;//set hours
this.price = this.hours * 45.00;//calculate price
}
}
//constructor
public Job(int jn,string cn,string desc,int h)
{
this.JobNumber = jn;
this.Customer = cn;
this.Description = desc;
this.Hours = h;

}
// override object.Equals
public override bool Equals(Object obj)
{
return (obj is Job) && ((Job)obj).JobNumber == JobNumber;
}

// override object.GetHashCode
public override int GetHashCode()
{
return this.JobNumber;
}
//method to return job details
public override string ToString()
{
return "Job " + this.JobNumber + " " + this.Customer + " " + this.Description + " " + this.hours + " hours @45.00 per hours.Total price is " + this.price.ToString("C", CultureInfo.GetCultureInfo("en-US"));
}
}
}
**************************************************

Program.cs :

//namespace
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//application namesapce
namespace JobDemo
{
class Program //C# class
{
//Main() method
static void Main(string[] args)
{
//creating object of Job class
Job job1 = new Job(111,"Smith", "exterior paint",20);
//creating another object of Job class
Job job2 = new Job(113, "Smith", "exterior paint", 20);
Console.WriteLine(job1.ToString());//print job1
Console.WriteLine(job2.ToString());//print job2
//checking job 1 and job 2
if (job1.Equals(job2))
{
//when both job1 and job 2 are equal
Console.WriteLine("Job 1 and Job 2 are equal");
}
else
{
//when both job1 and job 2 are not equal
Console.WriteLine("Job 1 and Job 2 are not equal");
}
//to hold the string
Console.ReadKey();
}
}
}
==============================================

Screen 1: