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Managing a String List Using ArrayList in C#

In this exercise, you will create and manipulate a list of strings using the ArrayList class in C#. The ArrayList class provides a flexible way to store collections of objects without specifying a fixed size, allowing dynamic management of data.

You will start by creating an ArrayList and adding several string items to it. Then, you will display all the stored items using a loop or another appropriate method.

Next, you will insert a new item at the second position in the list, modifying the arrangement of the items. After performing the insertion, you will display the updated list to verify that the insertion was successful and that all elements are in the correct order.

By completing this exercise, you will gain experience with the ArrayList class, including how to add, insert, and display elements. Understanding how to manage collections dynamically will be beneficial for working with data structures efficiently in C#.



Group

Dynamic Memory Management in C#

Objective

1. Create an ArrayList to store a collection of string values.
2. Add multiple string elements to the list.
3. Display all the stored items.
4. Insert a new string at the second position in the list.
5. Display the updated list to confirm the insertion.

In this exercise, you need to create a string list using the ArrayList class that already exists in the .NET platform. The ArrayList class allows storing items of any data type, making it a flexible data structure for managing dynamic collections. Once the list is created, you will need to display all the items stored in the list using a loop or an appropriate method for displaying.

Then, you will be asked to insert a new item in the second position of the list, which will change the arrangement of the items. After performing the insertion, you will need to display all the items in the list again to verify that the insertion was done correctly and that the list has been updated.

This exercise will help you get familiar with the ArrayList class in .NET and learn how to handle data collections efficiently in C#, as well as perform basic operations like inserting, removing, and displaying items in the list.

Example C# Exercise

 Copy C# Code 
using System;
using System.Collections; // Import the ArrayList namespace

class Program
{
    static void Main()
    {
        // Create an ArrayList to store string values
        ArrayList stringList = new ArrayList();

        // Add multiple string elements to the list
        stringList.Add("Apple");
        stringList.Add("Banana");
        stringList.Add("Cherry");
        stringList.Add("Date");

        // Display the initial list contents
        Console.WriteLine("Initial List:");
        foreach (string item in stringList)
        {
            Console.WriteLine(item);
        }

        // Insert a new item at the second position (index 1)
        stringList.Insert(1, "Blueberry");

        // Display the updated list contents
        Console.WriteLine("\nUpdated List After Insertion:");
        foreach (string item in stringList)
        {
            Console.WriteLine(item);
        }
    }
}

 Output

/Initial List:
Apple
Banana
Cherry
Date

//Updated List After Insertion:
Apple
Blueberry
Banana
Cherry

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More C# Practice Exercises of Dynamic Memory Management in C#

Explore our set of C# Practice Exercises! Specifically designed for beginners, these exercises will help you develop a solid understanding of the basics of C#. From variables and data types to control structures and simple functions, each exercise is crafted to challenge you incrementally as you build confidence in coding in C#.