By GokiSoft.com| 13:56 28/10/2021|
C Sharp

Bài 1: Chương trình quản lý sản phẩm - Lập Trình C# - Lập Trình C Sharp - Làm quen OOP

Cài đặt lớp Product gồm các thuộc tính (phải khai báo là private)

-       String maHH;

-       String tenHH;

-       float soLuong;

-       float gia1SP;

Cài đặt 2 construcors, các hàm get/set.

Cài đặt hàm input(), display().

Khai báo hàm main và thực hiện như sau:

-       Khai báo mảng có n phần tử kiểu Product.

-       Gọi nhập thông tin cho các phần tử của mảng.

-       Tìm ra sản phẩm nào có giá bán cao nhất.

Tags:



Phản hồi từ học viên

5

(Dựa trên đánh giá ngày hôm nay)

Hieu Ngo [community,C2009G]
Hieu Ngo

2021-10-12 04:15:20


#Product.cs


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

namespace QuanLySanPham
{
    class Product
    {
        private string maHH;

        public string Mahh
        {
            get
            {
                return maHH;
            }
            set
            {
                this.maHH = value;
            }
        }

        private string tenHH;

        public string TenHH
        {
            get
            {
                return tenHH;
            }
            set
            {
                this.tenHH = value;
            }
        }

        private float soLuong;

        public float SoLuong
        {
            get
            {
                return soLuong;
            }
            set
            {
                this.soLuong = value;
            }
        }

        private float gia;

        public Product()
        {
        }

        public float Gia
        {
            get
            {
                return gia;

            }
            set
            {
                this.gia = value;
            }
        }

        public Product(string mahh, string tenHH, float soLuong, float gia)
        {
            Mahh = mahh;
            TenHH = tenHH;
            SoLuong = soLuong;
            Gia = gia;
        }

        public void Input()
        {
            Console.WriteLine("Nhap ma hang hoa:");
            Mahh = Console.ReadLine();
            Console.WriteLine("Nhap ten hang hoa:");
            TenHH = Console.ReadLine();
            Console.WriteLine("Nhap so luong");
            SoLuong = Utility.ReadFloat();
            Console.WriteLine("Nhap gia ban:");
            Gia = Utility.ReadFloat();
        }

        public void Display()
        {
            Console.WriteLine("Ma hang hoa: {0}, Ten hang hoa: {1}, So luong: {2}, Gia ban: {3}", Mahh, TenHH, SoLuong, Gia);
        }
    }
}


#Program.cs


using System;
using System.Collections.Generic;

namespace QuanLySanPham
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> productList = new List<Product>();
            Console.WriteLine("Number of Product:");
            int n = int.Parse(Console.ReadLine());

            for(int i =0; i< n; i++)
            {
                Product product = new Product();
                product.Input();
                productList.Add(product);
            }

            getMAx(productList);
        }

        static void getMAx(List<Product> products)
        {
            float max = products[0].Gia;
            int count = 0;
            for(int i = 0; i < products.Count; i++)
            {
                if(max < products[i].Gia)
                {
                    max = products[i].Gia;
                    count++;
                }
            }
            if(count >=0)
            {
                for(int i = 0; i < products.Count; i++)
                {
                    if(max == products[i].Gia)
                    {
                        products[i].Display();
                    }
                }
            } else
            {
                products[0].Display();
            }
        }
    }
}


#Utility.cs


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

namespace QuanLySanPham
{
    public class Utility
    {
        
        public static float ReadFloat()
        {
            while(true)
            {
                try
                {
                    float value = float.Parse(Console.ReadLine());
                    return value;
                } catch (Exception ex)
                {
                    Console.WriteLine("Nhap sai!!");
                }
            }
            
        }
    }
}


Hoàng Thiện Thanh [community,AAHN-C2009G]
Hoàng Thiện Thanh

2021-10-01 10:27:27


#Product.cs


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

namespace ProductManagerRev1
{
    class Product
    {
        private string maHH;
        private string tenHH;
        private float soLuong;
        public float SoLuong { get { return soLuong; } set { this.soLuong = value; } }
        private float gia1SP;
        public float Gia1SP { get { return gia1SP; } set { this.gia1SP = value; } }

        public Product()
        {

        }
        public Product(string maHH, string tenHH, float SoLuong, float Gia1SP)
        {
            this.maHH = maHH;
            this.tenHH = tenHH;
            this.SoLuong = SoLuong;
            this.Gia1SP = Gia1SP;
        }

        public void input()
        {
            Console.WriteLine("Nhap ma hang:");
            maHH = Console.ReadLine();
            Console.WriteLine("Nhap ten hang:");
            tenHH = Console.ReadLine();
            Console.WriteLine("Nhap so luong:");
            SoLuong = validFloat(Console.ReadLine());
            Console.WriteLine("Nhap gia 1 SP:");
            Gia1SP = validFloat(Console.ReadLine());
        }

        public void display()
        {
            Console.WriteLine("Ma hang: {0}\nTen hang: {1}\nSo luong:{2}\nGia 1 san pham:{3}\n", maHH, tenHH, soLuong, Gia1SP);
        }

        public float validFloat(string str)
        {
            bool check()
            {
                try
                {
                    float.Parse(str);
                }
                catch (Exception) { return false; }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Hay nhap gia tri theo so thuc (hay so nguyen).");
                str = Console.ReadLine();
            }
            return float.Parse(str);
        }
    }
}


#Program.cs


using System;
using System.Collections.Generic;

namespace ProductManagerRev1
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> Products = new List<Product>();
            Console.WriteLine("Nhap so luong cac loai hang hoa muon them:");
            int N = validInt(Console.ReadLine());
            int i = 0;
            while(i < N)
            {
                Product pr = new Product();
                pr.input();
                Products.Add(pr);
                i++;
            }
            Console.WriteLine("\nCac loai hang: ");
            foreach (Product pr in Products)
            {
                pr.display();
            }
            Products.Sort((x, y) => y.Gia1SP.CompareTo(x.Gia1SP));
            Console.WriteLine("\nSan pham co gia cao nhat: ");
            Products[0].display();
        }
        static int validInt(string str)
        {
            bool check()
            {
                try
                {
                    int.Parse(str);
                }
                catch (Exception) { return false; }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Hay nhap gia tri theo so nguyen.");
                str = Console.ReadLine();
            }
            return int.Parse(str);
        }
    }
}


Nguyễn Việt Hoàng [community,AAHN-C2009G]
Nguyễn Việt Hoàng

2021-10-01 10:25:42


#Mains.cs


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

namespace Ss5.B2
{
    class Mains
    {
        static void Main(string[] args)
        {
            List<Product> p = new List<Product>();
            int i = 0;
            Console.WriteLine("Enter sum of product :");
            int sum = int.Parse(Console.ReadLine());
            do
            {
                Console.WriteLine("Product[" + (i + 1) + "]");
                Product pr = new Product();
                pr.input();
                p.Add(pr);
                i++;

            } while (i < sum);
            Console.WriteLine("Product with highest :");
            Product max = new Product();
            foreach (Product x in p)
            {
                if(x.Gia1SP > max.Gia1SP)
                {
                    max = x;
                }
            }
            max.display();
        }
    }
}


#Product.cs


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

namespace Ss5.B2
{
    class Product
    {
        private string maHH;
        public string MaHH
        {
            get
            {
                return this.maHH;
            }
            set
            {
                this.maHH = value;
            }
        }
        private string tenHH;
        public string TenHH
        {
            get
            {
                return this.tenHH;
            }
            set
            {
                this.tenHH = value;
            }
        }
        private float soLuong;
        public float SoLuong
        {
            get
            {
                return this.soLuong;
            }
            set
            {
                this.soLuong = value;
            }
        }
        private float gia1SP;
        public float Gia1SP
        {
            get
            {
                return this.gia1SP;
            }
            set
            {
                this.gia1SP = value;
            }
        }
        public Product()
        {

        }
        public Product(string maHH, string tenHH, float soLuong, float gia1SP)
        {
            this.MaHH = maHH;
            this.TenHH = tenHH;
            this.SoLuong = soLuong;
            this.Gia1SP = gia1SP;
        }
        public void input()
        {
            Console.WriteLine("Enter maHH :");
            MaHH = Console.ReadLine();
            Console.WriteLine("Enter tenHH :");
            TenHH = Console.ReadLine();
            Console.WriteLine("Enter soLuong :");
            SoLuong = float.Parse(Console.ReadLine());
            Console.WriteLine("Enter gia1SP :");
            Gia1SP = float.Parse(Console.ReadLine());
        }
        public void display()
        {
            Console.WriteLine("MaHH :{0}, TenHH :{1}, SoLuong :{2}, Gia1Sp :{3}",MaHH,TenHH,SoLuong,Gia1SP);
        }



    }
}


Hoàng Thiện Thanh [community,AAHN-C2009G]
Hoàng Thiện Thanh

2021-10-01 03:49:41


#Product.cs


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

namespace ProductManagerRev1
{
    class Product
    {
        private string maHH;
        private string tenHH;
        private float soLuong;
        public float SoLuong { get { return soLuong; } set { this.soLuong = value; } }
        private float gia1SP;

        public Product()
        {

        }
        public Product(string maHH, string tenHH, float SoLuong, float gia1SP)
        {
            this.maHH = maHH;
            this.tenHH = tenHH;
            this.SoLuong = SoLuong;
            this.gia1SP = gia1SP;
        }

        public void input()
        {
            Console.WriteLine("Nhap ma hang:");
            maHH = Console.ReadLine();
            Console.WriteLine("Nhap ten hang:");
            tenHH = Console.ReadLine();
            Console.WriteLine("Nhap so luong:");
            SoLuong = validFloat(Console.ReadLine());
            Console.WriteLine("Nhap gia 1 SP:");
            gia1SP = validFloat(Console.ReadLine());
        }

        public void display()
        {
            Console.WriteLine("Ma hang: {0}\nTen hang: {1}\nSo luong:{2}\nGia 1 san pham:{3}\n", maHH, tenHH, soLuong, gia1SP);
        }

        public float validFloat(string str)
        {
            bool check()
            {
                try
                {
                    float.Parse(str);
                }
                catch (Exception) { return false; }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Hay nhap gia tri theo so thuc (hay so nguyen).");
                str = Console.ReadLine();
            }
            return float.Parse(str);
        }
    }
}


#Program.cs


using System;
using System.Collections.Generic;

namespace ProductManagerRev1
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> Products = new List<Product>();
            Console.WriteLine("Nhap so luong cac loai hang hoa muon them:");
            int N = validInt(Console.ReadLine());
            int i = 0;
            while(i < N)
            {
                Product pr = new Product();
                pr.input();
                Products.Add(pr);
                i++;
            }
            Console.WriteLine("\nCac loai hang: ");
            foreach (Product pr in Products)
            {
                pr.display();
            }
            Products.Sort((x, y) => y.SoLuong.CompareTo(x.SoLuong));
            Console.WriteLine("\nSap xep tung loai hang theo so luong: ");
            foreach (Product pr in Products)
            {
                pr.display();
            }
        }
        static int validInt(string str)
        {
            bool check()
            {
                try
                {
                    int.Parse(str);
                }
                catch (Exception) { return false; }
                return true;
            }
            while (!check())
            {
                Console.WriteLine("Hay nhap gia tri theo so nguyen.");
                str = Console.ReadLine();
            }
            return int.Parse(str);
        }
    }
}


Nguyễn Anh Vũ [T2008A]
Nguyễn Anh Vũ

2021-05-22 14:35:11


#Program
using System;
using QuanLySanPham1434;
using System.Collections.Generic;

namespace QuanLySanPham1434
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            List<Product> arr = new List<Product>();
            Console.WriteLine("Nhap so luong can them : ");
            int n = Convert.ToInt32(Console.ReadLine());
            for (int i = 0; i < n; i++) ;
            {
                Product pr = new Product();
                pr.Input();
                arr.Add(pr);
            }
            foreach (Product pr in arr)
            {
                pr.Display();
            }
            float max = arr[0].gia1sp;
            foreach (var sp in arr)
            {
                if (arr[0].gia1sp > max) ;
            }
            max = arr[0].gia1sp;
            {
            Console.WriteLine("san pahm co gia cao nhat:" + max);
            }
        }
    }
}
#Product


using System;
using System.Collections.Generic;
using QuanLySanPham1434;

namespace QuanLySanPham1434
{
    class Product
    {
        public String maHH { get; set; }
        public String tenHH { get; set; }
        public float soluongHH { get; set; }
        public float gia1sp { get; set; }

        public Product()
        {

        }
        public Product(String maHH, String tenHH, float soluongHH, float gia1SP)
        {
            this.maHH = maHH;
            this.tenHH = tenHH;
            this.soluongHH = soluongHH;
            this.gia1sp = gia1SP;
        }
        public void Input()
        {
            Console.WriteLine("nhap ma hang hoa: ");
            maHH = Console.ReadLine();
            Console.WriteLine("nhap ten hang hoa: ");
            tenHH = Console.ReadLine();
            Console.WriteLine("nhap so luong: ");
            soluongHH = float.Parse(Console.ReadLine());
            Console.WriteLine("nhap gia 1 san pham: ");
            gia1sp = float.Parse(Console.ReadLine());
        }
        public void Display()
        {
            Console.WriteLine("{0},{1},{2},{3}", maHH, tenHH, soluongHH, gia1sp);
        }
    }
}


Triệu Văn Lăng [T2008A]
Triệu Văn Lăng

2021-05-19 08:01:52



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

namespace bai1434
{
    class product
    {
        public string maHH { get; set; }
        public string tenHH { get; set; }
        public float soLuong { get; set; }
        public float gia1SP { get; set; }

        public product()
        {
        }

        public product(string maHH, string tenHH, float soLuong, float gia1SP)
        {
            this.maHH = maHH;
            this.tenHH = tenHH;
            this.soLuong = soLuong;
            this.gia1SP = gia1SP;
        }

        public void input()
        {
            Console.WriteLine("Nhap maHH: ");
            maHH = Console.ReadLine();

            Console.WriteLine("Nhap tenHH: ");
            tenHH = Console.ReadLine();

            Console.WriteLine("Nhap soLuong: ");
            soLuong = float.Parse(Console.ReadLine());

            Console.WriteLine("Nhap gia1SP: ");
            gia1SP = float.Parse(Console.ReadLine());
        }

        public void display()
        {
            Console.WriteLine("maHH: " + maHH);
            Console.WriteLine("tenHH: " + tenHH);
            Console.WriteLine("soLuong: " + soLuong);
            Console.WriteLine("gia1SP: " + gia1SP);
        }
    }
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-18 04:47:28



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

namespace Lesson2_ProductManager
{
    class Product
    {
        public string MaHH { get; set; }
        public string TenHH { get; set; }

        public float SoLuong { get; set; }

        public float GiaSanPham { get; set; }

        public Product() { }

        public Product(string MaHH, string TenHH, float SoLuong, float GiaSanPham)
        {
            this.MaHH = MaHH;
            this.TenHH = TenHH;
            this.SoLuong = SoLuong;
            this.GiaSanPham = GiaSanPham;
        }

        public void Input()
        {
            Console.WriteLine("Nhap ma hang hoa");
            MaHH = Console.ReadLine();
            Console.WriteLine("Nhap ten hang hoa");
           TenHH = Console.ReadLine();
            Console.WriteLine("Nhap so luong hang hoa");
            SoLuong = float.Parse(Console.ReadLine());
            Console.WriteLine("Nhap gia san pham");
            GiaSanPham = float.Parse(Console.ReadLine());
        }

        public void Display()
        {
            Console.WriteLine("MaHH: {0}, tenHH: {1}, SoLuong: {2}, Gia: {3}",MaHH, TenHH, SoLuong,GiaSanPham);
        }

    }
}


Do Trung Duc [T2008A]
Do Trung Duc

2021-05-18 04:47:09



using System;
using System.Collections.Generic;
using Lesson2_ProductManager;
namespace Lesson2_ProductManager
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> ProductList = new List<Product>();
            Console.WriteLine("Nhap so luong hang hoa muon them:  ");
            int N = Int32.Parse(Console.ReadLine());

            int MaxPrice = 0;
            int IndexMax=0;
            for ( int i=0; i < N; i++)
            {
                Product product = new Product();
                product.Input();
                ProductList.Add(product);
                
                if (ProductList[i].GiaSanPham >= MaxPrice)
                {
                    IndexMax = i;
                }
            }

            Console.WriteLine("San pham co gia cao nhat la:");
            ProductList[IndexMax].Display();
            

        }
    }
}


Triệu Văn Lăng [T2008A]
Triệu Văn Lăng

2021-05-18 01:59:12



using System;
using bai1434;
using System.Collections.Generic;
namespace bai1434
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            List<product> prList = new List<product>();

            Console.WriteLine("Nhap so luong san pham can them: ");
            int n = Convert.ToInt32(Console.ReadLine());
            for(int i = 0; i < n; i++)
            {
                product prd = new product();
                Console.WriteLine("Nhap thong tin san pham thu {0}", i + 1);
                prd.input();
                prList.Add(prd);
            }

            Console.WriteLine("Thong tin san pham co gia cao nhat: ");
            float max = prList[0].gia1SP;
            for (int i = 0; i < prList.Count; i++)
            {
                if (prList[i].gia1SP > max)
                {
                    max = prList[i].gia1SP;
                }
            }

            for (int i = 0; i < prList.Count; i++)
            {
                if (prList[i].gia1SP == max)
                {
                    prList[i].display();
                }
            }
        }
    }
}


Trần Văn Lâm [T2008A]
Trần Văn Lâm

2021-05-17 15:54:18


#Product.cs


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

namespace les2bt3
{
    class Product
    {
        public String maHH { get; set; }
        public String tenHH { get; set; }
        public float soLuong { get; set; }
        public float gia1SP { get; set; }

        public Product()
        {

        }
        public Product(String maHH,String tenHH,float soLuong,float gia1SP)
        {
            this.maHH = maHH;
            this.tenHH = tenHH;
            this.soLuong = soLuong;
            this.gia1SP = gia1SP;
        }
        public void Input()
        {
            Console.WriteLine("nhap ma hang hoa:");
            maHH = Console.ReadLine();
            Console.WriteLine("nhap ten hang hoa:");
            tenHH = Console.ReadLine();
            Console.WriteLine("nhap so  luong:");
            soLuong = float.Parse(Console.ReadLine());
            Console.WriteLine("nhap gia 1 san pham:");
            gia1SP = float.Parse(Console.ReadLine());
        }
        public void Display()
        {
            Console.WriteLine("{0},{1},{2},{3}", maHH, tenHH, soLuong, gia1SP);
        }
    }
}


#Program.cs


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

namespace les2bt3
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Product> arr = new List<Product>();
            Console.WriteLine("Nhap so luong san pham:");
            int n = Convert.ToInt32(Console.ReadLine());
            for(int i = 0; i < n; i++)
            {
                Product pr = new Product();
                pr.Input();
                arr.Add(pr);
            }
            foreach(Product pr in arr)
            {
                pr.Display();
            }
            float max = arr[0].gia1SP;
            foreach (var sp in arr)
            {
                if (arr[0].gia1SP> max)
                {
                    max = arr[0].gia1SP;
                }
            }
            Console.WriteLine("san pahm co gia cao nhat:" + max);


        }
    }
}


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