Singleton-Design patterns- step by step explanation with simple examples for beginners to intermediate

Singleton-Design patterns - Software Design patterns - Design patterns in C#.NET - easy simple example

what is Singleton design pattern
In software engineering, the singleton pattern is a software design pattern that restricts the instantiation of a class to one "single" instance. This is useful when exactly one object is needed to coordinate actions across the system. The term comes from the mathematical concept of a singleton.

using System;

namespace SingleTonnDesignPatternExample
{
    class Logger
    {
        private static Logger logger;
        private Logger()
        {

        }

        public static Logger GetInstance()
        {
            if (logger == null)
            {
                logger = new Logger();
            }
            return logger;
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Logger logg = Logger.GetInstance();
        }
    }

}