C# Int64 Parse(String)

Description

Int64 Parse(String) converts the string representation of a number to its 64-bit signed integer equivalent.

Syntax

Int64.Parse(String) has the following syntax.


public static long Parse(
  string s
)

Parameters

Int64.Parse(String) has the following parameters.

s - A string containing a number to convert.

Returns

Int64.Parse(String) method returns A 64-bit signed integer equivalent to the number contained in s.

Example

The following example demonstrates how to convert a string value into a 64-bit signed integer value using the Int64.Parse(String) method.


using System;//w ww. j ava  2 s . c  om

public class ParseInt64
{
   public static void Main()
   {
      Convert("  123456  ");
      Convert(" -1234567 ");
      Convert(" +1234567 ");
      Convert("   1234.0   ");
      Convert("  123.4");
      Convert(String.Empty);
      Convert(((decimal) Int64.MaxValue) + 1.ToString());
   }

   private static void Convert(string value)
   {
      try
      {
         long number = Int64.Parse(value);
         Console.WriteLine("Converted '{0}' to {1}.", value, number);
      }
      catch (FormatException)
      {
         Console.WriteLine("Unable to convert '{0}'.", value);
      }
      catch (OverflowException)
      {
         Console.WriteLine("'{0}' is out of range.", value);
      }
   }
}

The code above generates the following result.