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File Handling Concept in C#:-

The file is a collection of records, It is used to store information permanently under client machine.

C# provides IO namespace to perform the File Handling Task.

Operation on File:-


1)  Write File:-


class FileHandlingOperation
    {
        public static void Main()
        {
            File.WriteAllText("D://mydemo.txt", "Welcome in File Handling");
            Console.ReadKey();
        }
    }

2)  Read File

class FileHandlingOperation
    {
        public static void Main()
        {
           String s= File.ReadAllText("D://mydemo.txt");
           Console.WriteLine(s);
            Console.ReadKey();
        }
    }

3)  Append File Operation:-


    class FileHandlingOperation
    {
        public static void Main()
        {
            File.AppendAllText("D://mydemo.txt", "Welcome in File Handling");
            Console.ReadKey();
        }
    }


                               

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