using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ThousandNumbersIO { class Program { static void Main(string[] args) { printnumbers(10); readnumbers(); Console.ReadKey(); } static void printnumbers(int num1) { Random rnd = new Random(); int int1; string[] lines = { "First line", "Second line", "Third line" }; using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"C:\Users\Public\TestFolder\WriteLines.txt", true)) for (int ii = 0; ii < num1; ii++) { int1 = rnd.Next(1, 10); file.WriteLine(Convert.ToString(int1)); } } static void readnumbers() { // The files used in this example are created in the topic // How to: Write to a Text File. You can change the path and // file name to substitute text files of your own. // Example #1 // Read the file as one string. string text = System.IO.File.ReadAllText(@"C:\Users\Public\TestFolder\WriteLines.txt"); // Display the file contents to the console. Variable text is a string. System.Console.WriteLine("Contents of WriteText.txt = {0}", text); // Example #2 // Read each line of the file into a string array. Each element // of the array is one line of the file. string[] lines = System.IO.File.ReadAllLines(@"C:\Users\Public\TestFolder\WriteLines.txt"); // Display the file contents by using a foreach loop. System.Console.WriteLine("Contents of WriteLines2.txt = "); foreach (string line in lines) { // Use a tab to indent each line of the file. Console.WriteLine("\t" + line); } // Keep the console window open in debug mode. Console.WriteLine("Press any key to exit."); System.Console.ReadKey(); } } }