Reverse the order of the elements in the entire List or in the specified range in C#

CsharpServer Side ProgrammingProgramming

To reverse the order of the elements in the entire List, the code is as follows −

Example

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   public static void Main(String[] args) {
      List<String> list = new List<String>();
      list.Add("One");
      list.Add("Two");
      list.Add("Three");
      list.Add("Four");
      list.Add("Five");
      list.Add("Six");
      list.Add("Seven");
      list.Add("Eight");
      Console.WriteLine("Enumerator iterates through the list elements...");
      List<string>.Enumerator demoEnum = list.GetEnumerator();
      while (demoEnum.MoveNext()) {
         string res = demoEnum.Current;
         Console.WriteLine(res);
      }
      list.Reverse(2, 4);
      Console.WriteLine("Elements in ArrayList2...Reversed 4 elements beginning from index 2");
      foreach (string res in list) {
         Console.WriteLine(res);
      }
   }
}

Output

This will produce the following output −

Enumerator iterates through the list elements...
One
Two
Three
Four
Five
Six
Seven
Eight
Elements in ArrayList2...Reversed 4 elements beginning from index 2
One
Two
Six
Five
Four
Three
Seven
Eight

Example

Let us see another example −

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   public static void Main(String[] args) {
      List<int> list = new List<int>();
      list.Add(5);
      list.Add(10);
      list.Add(20);
      list.Add(50);
      list.Add(100);
      Console.WriteLine("Enumerator iterates through the list elements...");  
      List<int>.Enumerator demoEnum = list.GetEnumerator();
      while (demoEnum.MoveNext()) {
         int res = demoEnum.Current;
         Console.WriteLine(res);
      }
      list.Reverse();
      Console.WriteLine("Elements in List...Reversed");
      foreach (int i in list) {
         Console.WriteLine(i);
      }
   }
}

Output

This will produce the following output −

Enumerator iterates through the list elements...
5
10
20
50
100
Elements in List...Reversed
100
50
20
10
5
raja
Published on 11-Dec-2019 08:03:50
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