Question #44781
Add product
Change units in stock and price of a product by id
Delete product by id
View all the products
Search products whose price above a specified value(if the user enters 100 then display all the products where price is above 100)
Expert's answer
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Set_of_product_details
{
class Program
{
static void Main(string[] args)
{
//list of Products
List<Product> listProducts = new List<Product>();
//user choice
int ch = -1;
while (ch != 6)
{
ch = -1;
while (ch < 1 || ch > 6)
{
//show menu
Console.WriteLine("1 - Add product");
Console.WriteLine("2 - Change units in stock and price of a product by id");
Console.WriteLine("3 - Delete product by id");
Console.WriteLine("4 - View all the products");
Console.WriteLine("5 - Search products whose price above a specified value");
Console.WriteLine("6 - Exit");
Console.Write("Your choice: ");
//read data from file
ch = int.Parse(Console.ReadLine());
switch (ch)
{
case 1:
//create new product
Product newProduct = new Product();
Console.Write("Enter product ID: ");
//read Id from keyboard
newProduct.Id = Console.ReadLine();
Console.Write("Enter product Name: ");
//read Name from keyboard
newProduct.Name = Console.ReadLine();
Console.Write("Enter product Units In Stock: ");
//read UnitsInStock from keyboard
newProduct.UnitsInStock = int.Parse(Console.ReadLine());
Console.Write("Enter product Price: ");
//read Price from keyboard
newProduct.Price = double.Parse(Console.ReadLine());
//add new product to list
listProducts.Add(newProduct);
//show message that New product has been added to list
Console.WriteLine("\nNew product has been added to list!!!\n");
break;
case 2:
//search by id
Console.Write("Enter product ID: ");
//read product id
string productId = Console.ReadLine();
int index = -1;
//search products with such id
for (int i = 0; i < listProducts.Count; i++)
{
if (productId.Equals(listProducts[i].Id))
{
index = i;
break;
}
}
// if no products show message No such product
if (index == -1)
{
Console.WriteLine("\nNo such product!!!\n");
}
else
{
//Change units in stock and price of a product by id
newProduct = new Product();
// set old id and Name of product
newProduct.Id = listProducts[index].Id;
newProduct.Name = listProducts[index].Name;
Console.Write("Enter product Units In Stock: ");
// read Units In Stock from keyboard
newProduct.UnitsInStock = int.Parse(Console.ReadLine());
Console.Write("Enter product Price: ");
// read price from keyboard
newProduct.Price = double.Parse(Console.ReadLine());
// remove old information about product
listProducts.RemoveAt(index);
// add new information about product
listProducts.Insert(index, newProduct);
}
break;
case 3:
Console.Write("Enter product ID: ");
// read product id
productId = Console.ReadLine();
index = -1;
// search product by id
for (int i = 0; i < listProducts.Count; i++)
{
if (productId.Equals(listProducts[i].Id))
{
index = i;
break;
}
}
// if no products show message No such product
if (index == -1)
{
Console.WriteLine("\nNo such product!!!\n");
}
else
{
// Remove product from list
listProducts.RemoveAt(index);
Console.WriteLine("\nThis product has been removed from list!!!\n");
}
break;
case 4:
// show name of column
Console.WriteLine("ID\tName\tUnits In Stock\tPrice");
Console.WriteLine("---");
//show all products in list
for (int i = 0; i < listProducts.Count; i++)
{
Console.WriteLine(listProducts[i].ToString());
}
break;
case 5:
//Search products whose price above a specified value(if the user enters 100 then display all the products where price is above 100)
Console.Write("Enter product Price: ");
//read price from keyboard
double ProductPrice = double.Parse(Console.ReadLine());
index = -1;
//show name of column
Console.WriteLine("ID\tName\tUnits In Stock\tPrice");
Console.WriteLine("-----------------------------------");
//show list of products
for (int i = 0; i < listProducts.Count; i++)
{
if (ProductPrice <= listProducts[i].Price)
{
Console.WriteLine(listProducts[i].ToString());
index++;
}
}
//if no products show message No such product
if (index == -1)
{
Console.WriteLine("\nNo such product!!!\n");
}
break;
}
}
}
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Set_of_product_details
{
public class Product
{
//fields
private string id;
private string name;
private int unitsInStock;
private double price;
//Encapsulate fields
public string Id
{
get { return id; }
set { id = value; }
}
public string Name
{
get { return name; }
set { name = value; }
}
public int UnitsInStock
{
get { return unitsInStock; }
set { unitsInStock = value; }
}
public double Price
{
get { return price; }
set { price = value; }
}
// <summary>
/// Return information about product
/// </summary>
/// <returns></returns>
public override string ToString()
{
return id + "\t" + name + "\t\t" + unitsInStock.ToString() + "\t" + price.ToString();
}
}
}file:///E:/Assignment Expert/Visual Studio 2010/Set of product details/Set of pr...
1 - Add product
2 - Change units in stock and price of a product by id
3 - Delete product by id
4 - View all the products
5 - Search products whose price above a specified value
6 - Exit
Your choice: 1
Enter product ID: as
Enter product Name: 5ads
Enter product Units In Stock: 3
Enter product Price: 600
New product has been added to list???
1 - Add product
2 - Change units in stock and price of a product by id
3 - Delete product by id
4 - View all the products
5 - Search products whose price above a specified value
6 - Exit
Your choice: 1
Enter product ID: asdas
Enter product Name: sads
Enter product Units In Stock: 6
Enter product Price: 90
New product has been added to list???
1 - Add product
2 - Change units in stock and price of a product by id
3 - Delete product by id
4 - View all the products
5 - Search products whose price above a specified value
6 - Exit
Your choice: 1
Enter product ID: asd
Enter product Name: asdas
Enter product Units In Stock: 6
Enter product Price: 900
New product has been added to list???
1 - Add product
2 - Change units in stock and price of a product by id
3 - Delete product by id
4 - View all the products
5 - Search products whose price above a specified value
6 - Exit
Your choice: 5
Enter product Price: 100
1 - Add product
2 - Change units in stock and price of a product by id
3 - Delete product by id
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#340153 on Dec 2023
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