using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace singleton
{
class Log
{
private static Log instance;
private static object syncRoot = new Object();
public static Log GetInstance()
{
lock (syncRoot)
{
if (instance == null)
instance = new Log();
}
return instance;
}
public void WriteLog(string msg)
{
if (instance == null)
throw new Exception("Exception: Log not initilized!");
Console.WriteLine("Writting out to log....");
}
}
class Program
{
static void Main(string[] args)
{
Log.GetInstance().WriteLog("test");
}
}
}
