Collection_ basic datastructure brushup, C#

Collection_ basic datastructure brushup

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

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

namespace Rextester
{
    public class DynamicArray
    {
        private object[] _objectArray=null;
        private int _nextOpenElement=0;
        private int _growthIncrement=10;
        private const int INITIAL_SIZE=25;
        
        public int Count
        {
            get{return _nextOpenElement;}
        }
        
        public object this[int index]
        {
            get
            {
                if((index >=0) && (index <= _objectArray.Length))
                    return _objectArray[index];
                else
                    throw new ArgumentOutOfRangeException();
            }
            
            set
            {
                if( _nextOpenElement < _objectArray.Length)
                     
                    _objectArray[_nextOpenElement++]=value;
                else
                {
                    GrowArray();
                    _objectArray[_nextOpenElement++]=value;
                }
            }
        }
        
        
        public DynamicArray(int size)
        {
            _objectArray=new object[size];
        }
        
        public DynamicArray():this(INITIAL_SIZE){}
        
        public void Add(object o)
        {
            if( _nextOpenElement < _objectArray.Length)
                     
                    _objectArray[_nextOpenElement++]=o;
                else
                {
                    GrowArray();
                    _objectArray[_nextOpenElement++]=o;
                }
        }
            
        private void GrowArray()
        {
         
            object[] _tempArray= _objectArray;
            _objectArray=new object[_objectArray.Length + _growthIncrement];
            
            for(int i=0,j=0;i < _tempArray.Length;i++)
            {
                if( _tempArray[i] != null)
                {
                    _objectArray[j++] = _tempArray[i];
                }
                _nextOpenElement=j;
            }
            _tempArray=null;
                
            }
        }
        
        
        
        
    
                    
    
    public class Program
    {
        public static void Main(string[] args)
        {
            
            DynamicArray da=new DynamicArray();
            Console.WriteLine("The Array contains "+ da.Count+" of objects");
            da.Add("Oh I Love C# Like Anything");
            Console.WriteLine(da[0].ToString());
            for(int i=1;i<56;i++)
            {
                da.Add(i);
            }
        
         Console.WriteLine("Now The Array contains "+ da.Count+" of objects");
            da.Add("Oh I Love C# Like Anything Even Now");
            //Console.WriteLine(da[0].ToString());
            for(int i=1;i<da.Count;i++)
            {
                if(da[i]!=null)
                {
                    Console.Write(da[i].ToString()+ " , ");
                    if((i%10)==0)
                    {
                        Console.WriteLine();
                    }
                
                }
            }
        
        }
    }
}


run \| edit \| history \| help	0