Hello World - Your First Program (C# Programming Guide)

The following procedure creates a C# version of the traditional "Hello World!" program. The program displays the string Hello World!

To create and run a console application

  1. Start Visual Studio.
  2. On the File menu, point to New, and then click Project.
  3. In the Templates Categories pane, expand Visual C#, and then click Windows.
  4. In the Templates pane, click Console Application.
  5. Type a name for your project in the Name field.
  6. Click OK.
    The new project appears in Solution Explorer.
  7. If Program.cs is not open in the Code Editor, right-click Program.cs in Solution Explorer and then click View Code.
  8. Replace the contents of Program.cs with the following code.
    // A Hello World! program in C#.
    using System;
    namespace HelloWorld
    {
        class Hello 
        {
            static void Main() 
            {
                Console.WriteLine("Hello World!");
    
                // Keep the console window open in debug mode.
                Console.WriteLine("Press any key to exit.");
                Console.ReadKey();
            }
        }
    }
    
    
    
  9. Press F5 to run the project. A Command Prompt window appears that contains the line Hello World!
Comments: 
 
 
// A Hello World! program in C#.


You can also comment out a block of text by enclosing it between the /* and */ characters. This is shown in the following example.
/* A "Hello World!" program in C#.
This program displays the string "Hello World!" on the screen. */

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10th 3i InfoTech Academic Books Accenture ACIO ActiveX ADT Agricultural AIEEE Air Force Algebraic Amdocs Android Answers Application Development Aptitude Aptitude Questions Architectures ASP ATOS B.Sc B.Tech.B.E. Bank Exam BCA BE Board Exam Books break-continue Business Plan C C Programming C# C++ Campus campus interview Candidate profile Capgemini Career CDS Certification CET Challenge Circle Cisco class code Cognizant communication Company Company Profile Competitive Exams computer Computer Networks concentric circles constructor Course Credit Suisse CSS CTS Data Structure DBMS DC Deloitte difficult interview questions dimensions Distributed Computing do while dotNet Download ds Dynamic Web Development e-Admit card Educational engineering entertainment Even Odd Events exam schedule exception for loop fresher GATE general Discussion general knowledge Get Placed Government Job Hall Ticket HCL how to answer How to Prepare HR HR Interview HSC hypertext preprocessor IB IBM IBPS IIT Indian Army Information infosys Intelligence Bureau Internship interview Experience interview questions Interview Tips IntroC IntroC# IntroJava IntroPHP IT J2EE J2ME Java JavaScript jobs Language Books Language Tutorial Languages limit number of objectsJava Limit the number of objects being created in JAVA Linux Linux Administrator Linux Developer Logical Questions loops M Tech M.E. M.Tech M.Tech AND B.Tech Management Management Skills Matrices MBA mca ME microsoft mistakes Mixture Mobile Computing mock questions mock test MySql naukri NDA OOP opening Operating System Oracle paper Persistent PHP php programming php string variables PL/SQL Placement placement guide Placement Paper Placement Process preparing for placement presentation probability Problems Professional program Programming Project Engineer project idea Projects Puzzle qualities Question of the day Questions Quiz Question Recruitment Recruitment Pattern Requirement Result Resume Reviews Screen Sizes Scripting Session Skills Software Software Engineering solved papers Source Code Speed time and distance SQL SSC story Stress Interview Study Material study tips submit resume Synonym TCS Tech Mahindra tech news Technical Books Technical Interview Testing thank you letter Thought Time Table TutC++ Unix questions asked in aptitude and inteviews for MCA UPSC verbal Web Designing Web Developer Website Development What to read while loop Wipro Writing Resume