By GokiSoft.com| 17:27 29/10/2021|

C Sharp

Viết chương trình quản lý xe car bằng C # - C Sharp | Khoá học lập trình C#

1. Create an interface Icar that has the following methods:

● Method “calculateTax()”, returns the type float: calculate the tax of the car.

● Method “calculatePrice()”, returns the type float: calculate the total cost of the car.

● Method “getInfor()”, returns the type void: display the information of the car.

2. Create a class Car inherit from interface Icar. [6]

Declare fields has access modifier as private use for properties: name, producer, year, seat and rootprice.

● Create two constructors and all method get/set for its attributes

● Implement method calculateTax() to calculate the Tax as follows:

○ If the car has under 7 seats then tax = RootPrice * 60%.

○ Else tax = RootPrice * 70%

● Implement method calculatePrice() to calculate TotalPrice as follows:

○ TotalPrice=RootPrice + Tax

● Implement method getInfor() to show the information as follows: .... car produced by ... in ... has ... seats with the total price is ....$. Variable includes :name of the car, the name of the manufacturer, year of production, seats and TotalPrice (For example: Ford car produced by Ford in 1997 has 4 seats with the total price is 20000 $).

Declaring class LuxuryCar inherits from class Car and adding follow attrubtes :

private float specialRate;

● Create two constructors and all method get/set for its attributes

● Override method calculatePrice to calculate TotalPrice as follows :

TotalPrice = RootPrice + Tax + RootPrice * specialRate

● Overload method calculatePrice with 1 parameter named “transportCost” with type float. It calculates TotalCost as follows: TotalPrice = RootPrice + Tax + RootPrice * specialRate + transportCost.

Create a class named Test.

● Declare and initialize 1 instance named “myLuxuryCar” of class LuxuryCar.

○ Input Name, Producer, Year, Seat, rootPrice from the keyboard (Catch exception when input value). Display the contents of this LuxuryCar.

○ Calculate TotalPrice in case transportCost is $ 20,000, and display it.

Phản hồi từ học viên

5

(Dựa trên đánh giá ngày hôm nay)

Nam20021608

2021-10-16 07:09:48

#Program.cs

using System;
using Examl.Interface;
using Examl.Model;
using Examl.Libary;
using System.Collections.Generic;

namespace Examl
{
    class Program
    {
       
        public static List<iherit> CarList = new List<iherit>();
        public static void Main(string[] args)
        {

            iherit c = new iherit();
            c.Input();
            CarList.Add(c);
            c.getInfor();
            LuxuryCar l = new LuxuryCar();
            l.calculatePrice(20000);
            Console.WriteLine("CalculatePrice :" + l.calculatePrice(20000));
        }
    }
}

#inherit.cs

using System;
using Examl.Interface;
using Examl.Libary;
namespace Examl.Model
{
    class iherit : ICar
    {
        public String NameCar{get;set;}
        public String Producer{get;set;}
        public DateTime Year{get;set;}
        public int Seat{get;set;}
        public float RootPrice{get;set;}

        public iherit(){}
        public iherit(String name , String producer , String year , int seat , float price){
            this.NameCar = name;
            this.Producer= producer;
            this.Year = Utility.ConvertStrignToDateTime(producer);
            this.Seat = seat;
            this.RootPrice = price;
        }

        public void Input(){
            Console.WriteLine("Enter Name Car: ");
            NameCar = Console.ReadLine();
            Console.WriteLine("Enter Producer : ");
            Producer = Console.ReadLine();
            Console.WriteLine("Enter Year: ");
            Year = Utility.ConvertStrignToDateTime();
            Console.WriteLine("Enter Seat: ");
            Seat = Utility.ReadInt();
            Console.WriteLine("Enter Root Price: ");
            RootPrice = Utility.ReadFloat();
        }
        
        public  float calculateTax()
        {
           float tax;
            if(Seat < 7){
                 tax = (float)(RootPrice * 0.6);
            }else{
                tax = (float)(RootPrice * 0.7);
            }
            return tax;
        }
        public virtual float calculatePrice()
        {
            float totalPrice = calculateTax() + RootPrice;
            return totalPrice;  

        }

        public virtual float calculatePrice(float transportCost)
        {
            return 0;
        }

        public void getInfor()
        {
            Console.WriteLine("{0} car produced by {1} in {2} has {3} seats with the total price is {4} $",NameCar , Producer , Year , Seat , calculatePrice());
        }
    }
}

#LuxuryCar.cs

using System;
using Examl.Interface;
using Examl.Libary;
namespace Examl.Model
{
    class LuxuryCar : iherit
    {
        private float specialRate{get;set;}
        public LuxuryCar(){}
        public LuxuryCar(String name , String producer , String year , int seat , float price , float specialrate):base (name,producer,year,seat,price){
            this.specialRate = specialrate;
        }

        public override float calculatePrice()
        {
            float totalprice = base.RootPrice + base.calculateTax() +(base.RootPrice * specialRate);
            return totalprice; 
        }

        public override float calculatePrice(float transportCost)
        {
            float totalprice2 = calculatePrice() + transportCost;
            return totalprice2; 
        }
    }
}

#Utility.cs

using System;
namespace Examl.Libary
{
    class Utility{
        public static float ReadFloat(){
            float a;
            while (true)
            {
                 try
                 {
                      a = float.Parse(Console.ReadLine());
                      if(a < 0){
                          a = float.Parse(Console.ReadLine());
                      }
                      return a;
                 }
                 catch (System.Exception)
                 {
                     Console.WriteLine("Re-Enter !!!");
                 }
            }
        }
        
        public static int ReadInt(){
            int b ;
            while (true)
            {
                 try
                 {
                      b = int.Parse(Console.ReadLine());
                      return b;
                 }
                 catch (System.Exception)
                 {
                     
                     Console.WriteLine("Re-Enter !!!");
                 }
            }
        }
        public static DateTime ConvertStrignToDateTime()
        {
            String c;
            while (true)
            {
                try
                {
                    c = Console.ReadLine();
                    DateTime myDate = DateTime.ParseExact(c, "yyyy-MM-dd",
                                       System.Globalization.CultureInfo.InvariantCulture);
                    return myDate;
                }
                catch (System.Exception)
                {

                    Console.WriteLine("nhap lai: ");
                }

            }

        }
        public static DateTime ConvertStrignToDateTime(string c)
        {

            c = Console.ReadLine();
            DateTime myDate = DateTime.ParseExact(c, "yyyy-MM-dd",
                               System.Globalization.CultureInfo.InvariantCulture);
            return myDate;

        }
    }
}

#ICar.cs

using System;
namespace Examl.Interface{
    interface ICar
    {
        public float calculateTax();
        public float calculatePrice();
        public void getInfor();
    }
}

Hoàng Thiện Thanh

2021-10-15 14:40:46

#Program.cs

using CarManager.Models;
using System;
using System.Collections.Generic;

namespace CarManager
{
    public class Program
    {
        public static List<Car> CarList = new List<Car>();
        public static void Main(string[] args)
        {

            Car c = new Car();
            c.Input();
            CarList.Add(c);
            c.getInfor();
            LuxuryCar l = new LuxuryCar();
            l.calculatePrice(20000);
            Console.WriteLine("CalculatePrice :" + l.calculatePrice(20000));
        }
    }
}

#ICar.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace CarManager.Interfaces
{
    public interface ICar
    {
        float calculateTax();
        float calculatePrice();
        void getInfor();
    }
}

#Car.cs

using CarManager.Interfaces;
using CarManager.Utils;
using System;

namespace CarManager.Models
{
    public class Car : ICar
    {
        //name, producer, year, seat and rootprice
        public string Name { get; set; }
        public string Manufacturer { get; set; }
        public int Year { get; set; }
        public int Seat { get; set; }
        public float RootPrice { get; set; }

        public virtual void Input()
        {
            Console.WriteLine("Input Name: ");
            Name = Console.ReadLine();
            Console.WriteLine("Input Manufacturer: ");
            Manufacturer = Utility.ReadLetters();
            Console.WriteLine("Input Year: ");
            Year = Utility.ReadInt();
            Console.WriteLine("Input Seats: ");
            Seat = Utility.ReadInt();
            Console.WriteLine("Input Root Price: ");
            RootPrice = Utility.ReadFloat();
        }

        public Car()
        {

        }
        public Car(string Name, int Year, int Seat, float RootPrice)
        {
            this.Name = Name;
            this.Year = Year;
            this.Seat = Seat;
            this.RootPrice = RootPrice;
        }
        public virtual float calculatePrice()
        {
            float Tax = calculateTax();
            return RootPrice + Tax;
        }

        public virtual float calculateTax()
        {
            float Tax;
            if (Seat < 7)
            {
                Tax = (float)(RootPrice * 0.6);
            } else
            {
                Tax = (float)(RootPrice * 0.7);
            }
            return Tax;
        }

        public virtual void getInfor()
        {
            Console.WriteLine("The {0} car produced by {1} in {2}, it has {3} seats with the total price of {4}$", Name, Manufacturer, Year, Seat, calculatePrice());
        }
    }
}

#LuxuryCar.cs

using CarManager.Interfaces;
using CarManager.Utils;
using System;
using System.Collections.Generic;
using System.Text;

namespace CarManager.Models
{
    public class LuxuryCar : Car, ICar
    {
        public float SpecialRate { get; set; }
        public LuxuryCar() : base(){
            
        }
        public LuxuryCar(string Name, int Year, int Seat, float RootPrice, float SpecialRate) : base(Name, Year, Seat, RootPrice)
        {
            this.SpecialRate = SpecialRate;
        }
        public override float calculatePrice()
        {
            float Tax = calculateTax();
            return RootPrice + Tax + RootPrice * SpecialRate;
            
        }
        public float calculatePrice(float TransportPrice)
        {
            float Tax = calculateTax();
            return RootPrice + Tax + RootPrice * SpecialRate + TransportPrice;
        }

        public override void Input()
        {
            base.Input();
            Console.WriteLine("Input Special Rate:");
            SpecialRate = Utility.ReadFloat();
        }
    }
}

#Utility.cs

using System;
using System.Text.RegularExpressions;

namespace CarManager.Utils
{
    public class Utility
    {
        public static int ReadInt()
        {
            string str = Console.ReadLine();
            bool check()
            {
                try { int.Parse(str); } catch (Exception) { return false; }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Cannot parse input like a floor numeric value");
                str = Console.ReadLine();
            }
            return int.Parse(str);
        }

        public static float ReadFloat()
        {
            string str = Console.ReadLine();
            bool check()
            {
                try { float.Parse(str); } catch (Exception) { return false; }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Cannot parse input like a float numeric value");
                str = Console.ReadLine();
            }
            return float.Parse(str);
        }
        public static DateTime ReadDate()
        {
            string str = Console.ReadLine();
            DateTime date = new DateTime();
            bool check()
            {
                int ERR = 0;
                try { date = DateTime.Parse(str); } catch (Exception) { ERR++; }
                try { if (ERR == 1) date = Convert.ToDateTime(str); } catch (Exception) { ERR++; }
                if (ERR == 2)
                {
                    return false;
                }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Cannot read DateTime from input");
                str = Console.ReadLine();
            }
            return date;
        }
        public static string ReadLetters()
        {
            string str = Console.ReadLine();
            while (!Regex.Match(str, "^([a-zA-Z]+|[a-zA-Z]+\\s[a-zA-Z]+)*$").Success)
            {
                Console.WriteLine("Input does not only contain letters");
                str = Console.ReadLine();
            }
            return str;
        }
    }
}

Nguyễn Việt Hoàng

2021-10-14 16:42:29

#Car.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B2
{
    class Car : Icar
    {
        public string Name { get; set; }
        public string Producer { get; set; }
        public int Year { get; set; }
        public int Seat { get; set; }
        public float RootPrice { get; set; }
        public Car()
        {

        }
        public Car(string name, string producer, int year, int seat, float rootprice, float tax)
        {
            this.Name = name;
            this.Producer = producer;
            this.Year = year;
            this.Seat = seat;
            this.RootPrice = rootprice;
          
        }
         public float calculateTax()
        {
            float sum = 0;
           foreach(Car c in Mains.CarList)
            {
                if(c.Seat < 7)
                {
                   sum = (float)(c.RootPrice * 0.6);
                }else
                {
                    sum = (float)(c.RootPrice * 0.7);
                }
            }
            return sum;
        }

        public virtual float calculatePrice()
        {
            float total = 0;
            foreach(Car c in Mains.CarList)
            {
                total = RootPrice * calculateTax();
            }
            return total;
        }
        public void Input()
        {
            Console.WriteLine("Enter Name :");
            Name = Console.ReadLine();
            Console.WriteLine("Enter Produce :");
            Producer = Console.ReadLine();
            Console.WriteLine("Enter Year :");
            Year = int.Parse(Console.ReadLine());
            Console.WriteLine("Enter Seat :");
            Seat = int.Parse(Console.ReadLine());
            Console.WriteLine("Enter RootPrice :");
            RootPrice = float.Parse(Console.ReadLine());
          
        }

        public void getInfor()
        {
            Console.WriteLine("{0} car produced by {1} in {2} has {3} seats with the total price is {4}$", Name, Producer, Year, Seat, calculatePrice());
        }
    }
}

#Icar.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B2
{
    interface Icar
    {
        public float calculateTax();
        public float calculatePrice();
        public void getInfor();
    }
}

#LuxuryCar.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B2
{
    class LuxuryCar : Car
    {
        public float SpecialRate { get; set; }
        public LuxuryCar()
        {
            this.SpecialRate = 0.6F;
        }
        public LuxuryCar(string name, string producer, int year, int seat, float rootprice, float tax, float specialrate) : base(name, producer, year, seat,  rootprice, tax)
        {
            this.SpecialRate = specialrate;
        }
        public override float calculatePrice()
        {
            float total = 0;
            total = base.RootPrice + base.calculateTax() + base.RootPrice * this.SpecialRate;
            return total;
        }
        public  float calculatePrice(float transportCost)
        {
            float totalCost = 0;
            totalCost = base.RootPrice + base.calculateTax() + base.RootPrice * this.SpecialRate + transportCost;
            return totalCost;
          
        }
       
    }
}

#Mains.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ss11.B2
{
    class Mains
    {
        public static List<Car> CarList = new List<Car>();
        public static void Main(string[] args)
        {

            Car c = new Car();
            c.Input();
            CarList.Add(c);
            c.getInfor();
            LuxuryCar l = new LuxuryCar();
            l.calculatePrice(20000);
            Console.WriteLine("CalculatePrice :" + l.calculatePrice(20000));
        }
    }
}

Viết chương trình quản lý xe car bằng C # - C Sharp | Khoá học lập trình C#

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Phản hồi từ học viên

5

Nam20021608

#Program.cs

#inherit.cs

#LuxuryCar.cs

#Utility.cs

#ICar.cs

Hoàng Thiện Thanh

#Program.cs

#ICar.cs

#Car.cs

#LuxuryCar.cs

#Utility.cs

Nguyễn Việt Hoàng

#Car.cs

#Icar.cs

#LuxuryCar.cs

#Mains.cs

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