Zip operation in C Sharp (C#) - Mini Project: Build & Apply

Zip Operation in C#

📖 Scenario: You work in a small store. You have two lists: one with product names and one with their prices. You want to combine these lists to see each product with its price.

🎯 Goal: Build a program that uses the Zip operation to pair each product with its price and print the pairs.

📋 What You'll Learn

Create two lists: one called products with exact values "Apple", "Banana", "Cherry"

Create another list called prices with exact values 1.2, 0.5, 2.0

Use a variable called productPrices to store the zipped pairs

Use a foreach loop with variables product and price to iterate over productPrices

Print each product and price in the format: "Apple: $1.2"

💡 Why This Matters

🌍 Real World

Stores and shops often have separate lists for products and prices. Combining them helps show clear price tags or receipts.

💼 Career

Knowing how to combine related data from different lists is useful in many programming jobs, especially in data processing and user interface development.

1

Create the product and price lists

Create a list of strings called products with these exact values: "Apple", "Banana", "Cherry". Also create a list of doubles called prices with these exact values: 1.2, 0.5, 2.0.

C Sharp (C#)

// Create the list called products with "Apple", "Banana", "Cherry"
// Create the list called prices with 1.2, 0.5, 2.0

Need a hint?

Use List<string> for products and List<double> for prices. Initialize them with the exact values.

2

Create the zipped pairs

Create a variable called productPrices that uses products.Zip(prices, (product, price) => (product, price)) to combine the two lists into pairs.

C Sharp (C#)

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List products = new List { "Apple", "Banana", "Cherry" };
        List prices = new List { 1.2, 0.5, 2.0 };

        // Create productPrices by zipping products and prices
        // Your code here
    }
}

Need a hint?

Use var productPrices = products.Zip(prices, (product, price) => (product, price)); to combine the lists.

3

Loop through the zipped pairs

Use a foreach loop with variables product and price to iterate over productPrices.

C Sharp (C#)

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List products = new List { "Apple", "Banana", "Cherry" };
        List prices = new List { 1.2, 0.5, 2.0 };

        var productPrices = products.Zip(prices, (product, price) => (product, price));

        // Use foreach with product and price to loop over productPrices
        // Your code here
    }
}

Need a hint?

Use foreach (var (product, price) in productPrices) to loop through the pairs.

4

Print each product with its price

Inside the foreach loop, write Console.WriteLine($"{product}: ${price}"); to print each product and its price.

C Sharp (C#)

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List products = new List { "Apple", "Banana", "Cherry" };
        List prices = new List { 1.2, 0.5, 2.0 };

        var productPrices = products.Zip(prices, (product, price) => (product, price));

        foreach (var (product, price) in productPrices)
        {
            // Print product and price here
            // Your code here
        }
    }
}

Need a hint?

Use Console.WriteLine($"{product}: ${price}"); inside the loop to print each pair.