C# Sharp Exercises: Remove items from list by creating object internally by filtering

Last update on December 20 2024 12:42:18 (UTC/GMT +8 hours)

Write a program in C# Sharp to remove items from list by creating an object internally by filtering.

Sample Solution:

C# Sharp Code:

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

// Define a class named LinqExercise18
class LinqExercise18
{
    // Main method, the entry point of the program
    static void Main(string[] args)
    {
        // Create a list of strings
        List<string> listOfString = new List<string>();
        // Add strings to the list
        listOfString.Add("m");
        listOfString.Add("n");
        listOfString.Add("o");
        listOfString.Add("p");
        listOfString.Add("q");

        // Display information about the program
        Console.Write("\nLINQ : Remove items from list by creating object internally by filtering : ");
        Console.Write("\n--------------------------------------------------------------------------\n");

        // Select all items in the list using LINQ and display them
        var _result1 = from y in listOfString
                       select y;
        Console.Write("Here is the list of items : \n");
        foreach (var tchar in _result1)
        {
            Console.WriteLine("Char: {0} ", tchar);
        }

        // Remove the first occurrence of "p" from the list using LINQ and Remove method
        listOfString.Remove(listOfString.FirstOrDefault(en => en == "p"));

        // Select and display all items in the list after removing "p"
        var _result = from z in listOfString
                      select z;
        Console.Write("\nHere is the list after removing the item 'p' from the list : \n");
        foreach (var rChar in _result)
        {
            Console.WriteLine("Char: {0} ", rChar);
        }

        Console.ReadLine(); // Wait for user input before closing the program
    }
}

Sample Output:

LINQ : Remove items from list by creating object internally by filtering  :                                   
--------------------------------------------------------------------------                                    
Here is the list of items :                                                                                   
Char: m                                                                                                     
Char: n                                                                                                     
Char: o                                                                                                     
Char: p                                                                                                     
Char: q                                                                                                     
Here is the list after removing the item 'p' from the list :                                                  
Char: m                                                                                                     
Char: n                                                                                                     
Char: o                                                                                                     
Char: q 

Visual Presentation:

Flowchart:

C# Sharp Code Editor:

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