Sort and search an ArrayList : ArrayList « Data Structure « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Structure
3. ArrayList

using System; 
using System.Collections; 
 
class MainClass { 
  public static void Main() { 
    // create an array list 
    ArrayList al = new ArrayList(); 
     
    // Add elements to the array list 
    al.Add(155); 
    al.Add(413); 
    al.Add(-41); 
    al.Add(818); 
    al.Add(31); 
    al.Add(191); 
 
    Console.Write("Original contents: "); 
    foreach(int i in al) 
      Console.Write(i + " "); 
    Console.WriteLine("\n"); 
 
    // Sort 
    al.Sort(); 
 
    // Use foreach loop to display the list. 
    Console.Write("Contents after sorting: "); 
    foreach(int i in al) 
      Console.Write(i + " "); 
    Console.WriteLine("\n"); 
 
    Console.WriteLine("Index of 413 is " + al.BinarySearch(413)); 
  } 
}

Original contents: 155 413 -41 818 31 191

Contents after sorting: -41 31 155 191 413 818

Index of 413 is 4