ArrayList Demo : ArrayList : Collections Data Structure C# Source Code

    

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/
 using System;
 using System.Collections;

 namespace ArrayListDemo
 {
     // a class to hold in the array list
     class Employee
     {
         private int empID;
         public Employee(int empID)
         {
             this.empID = empID;
         }
         public override  string ToString()
         {
             return empID.ToString();
         }
         public int EmpID
         {
             get { return empID; }
             set { empID = value; }
         }
     }

     public class ArrayListDemoTester
     {
         public void Run()
         {
             ArrayList empArray = new ArrayList();
             ArrayList intArray = new ArrayList();

             // populate the arraylists
             for (int i = 0;i<5;i++)
             {
                 empArray.Add(new Employee(i+100));
                 intArray.Add(i*5);
             }

             // print each member of the array
             foreach (int i in intArray)
             {
                 Console.Write("{0} ", i.ToString());
             }

             Console.WriteLine("\n");

             // print each employee
             foreach(Employee e in empArray)
             {
                 Console.Write("{0} ", e.ToString());
             }

             Console.WriteLine("\n");
             Console.WriteLine("empArray.Capacity: {0}",
                 empArray.Capacity);
         }

         [STAThread]
         static void Main()
         {
             ArrayListDemoTester t = new ArrayListDemoTester();
             t.Run();
         }
     }
 }