Parse string to int value

using System;/*from  ja  v  a 2 s .c o  m*/

class MainClass
{
    public static void Main()
    {
        int value = Int32.Parse("99953");
        Console.WriteLine("{0}", value);
    }
}

using System;//from  j av a  2  s .  c  o m

public class Main
{
   public static void Main()
   {
      Convert("179");
   }

   private static void Convert(string value)
   {
      try
      {
         int number = Int32.Parse(value);
         Console.WriteLine("Converted '{0}' to {1}.", value, number);
      }
      catch (FormatException)
      {
         Console.WriteLine("Unable to convert '{0}'.", value);
      }
   }
}

using System;/*  j a v a  2  s.  c  o m*/
using System.Globalization;

public class Example
{
   public static void Main()
   {
      string string1 = "2";
      try {
         int number1 = Int32.Parse(string1);
         Console.WriteLine(number1);
      }
      catch (OverflowException) {
         Console.WriteLine("'{0}' is out of range of a 32-bit integer.", string1);
      }
      catch (FormatException) {
         Console.WriteLine("The format of '{0}' is invalid.", string1);
      }

   }
}

using System;/* j a v a2s  .c  o  m*/
public class MainClass {
    public static void Main() {

        int i;
        bool failure = int.TryParse("qwerty", out i);
        bool success = int.TryParse("123", out i);
    }
}

using System;/*from  j  a v a 2 s  .com*/
using System.Collections.Generic;
using System.Text;

class Program
{
 static void Main(string[] args)
 {
      int numberEntered;
      while(!int.TryParse(Console.ReadLine(), out numberEntered)){
           Console.WriteLine("Please try again");
      }
      Console.WriteLine("You entered " + numberEntered.ToString());
 }
}