![Compiling Source CodeCompiling Source Code
The process ofThe process of compilingcompiling includes:includes:
Syntactic checksSyntactic checks
Type safety checksType safety checks
Translation of the source code to lower levelTranslation of the source code to lower level
language (MSIL)language (MSIL)
Creating of executable files (assemblies)Creating of executable files (assemblies)
You can start compilation byYou can start compilation by
UsingUsing Build->Build Solution/ProjectBuild->Build Solution/Project
PressingPressing [[F6]F6] oror [Shift+Ctrl+B][Shift+Ctrl+B]
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![Running ProgramsRunning Programs
The process ofThe process of runningrunning application includes:application includes:
Compiling (if project not compiled)Compiling (if project not compiled)
Starting the applicationStarting the application
You can run application by:You can run application by:
UsingUsing Debug->StartDebug->Start menumenu
By pressingBy pressing [F5][F5] oror [Ctrl+F5][Ctrl+F5]
* NOTE: Not all types of projects are able to be* NOTE: Not all types of projects are able to be
started!started!
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01 Introduction to programming
- 1. Introduction toIntroduction to ProgrammingProgramming Creating and RunningYour First C# ProgramCreating and RunningYour First C# Program Svetlin NakovSvetlin Nakov Telerik CorporationTelerik Corporation www.telerik.comwww.telerik.com
- 2. Table of ContentsTable of Contents 1.1. What is Computer Programming?What is Computer Programming? 2.2. Your First C# ProgramYour First C# Program 3.3. What is .NET Framework?What is .NET Framework? 4.4. What is Visual Studio?What is Visual Studio? 5.5. What is MSDN Library?What is MSDN Library? 2
- 3. What is ComputerWhat is Computer Programming?Programming?
- 4. Define: Computer ProgrammingDefine: Computer Programming Computer programmingComputer programming: creating a: creating a sequence of instructions to enable thesequence of instructions to enable the computer to do somethingcomputer to do something Definition by GoogleDefinition by Google 4
- 5. Programming PhasesProgramming Phases Define a task/problemDefine a task/problem Plan your solutionPlan your solution Find suitable algorithm to solve itFind suitable algorithm to solve it Find suitable data structures to useFind suitable data structures to use Write codeWrite code Fix program error (bugs)Fix program error (bugs) Make your customer happyMake your customer happy = Specification= Specification = Design= Design = Implementation= Implementation = Testing & Debugging= Testing & Debugging = Deployment= Deployment 5
- 6. Your First C# ProgramYour First C# Program
- 7. First Look at C#First Look at C# Sample C# program:Sample C# program: using System;using System; class HelloCSharpclass HelloCSharp {{ static void Main()static void Main() {{ Console.WriteLine("Hello, C#");Console.WriteLine("Hello, C#"); }} }} 77
- 8. C# Code – How It Works?C# Code – How It Works? using System;using System; class HelloCSharpclass HelloCSharp {{ static void Main()static void Main() {{ Console.WriteLine("Hello, C#");Console.WriteLine("Hello, C#"); }} }} Include the standardInclude the standard namespace "namespace "SystemSystem"" Define a class calledDefine a class called ""HelloCSharpHelloCSharp"" DefineDefine thethe Main()Main() method – themethod – the program entryprogram entry pointpoint Print a text on the console byPrint a text on the console by calling the methodcalling the method ""WriteLineWriteLine" of the class" of the class ""ConsoleConsole"" 8
- 9. C# Code Should Be WellC# Code Should Be Well FormattedFormatted using System;using System; class HelloCSharpclass HelloCSharp {{ static void Main()static void Main() {{ Console.WriteLine("Hello, C#");Console.WriteLine("Hello, C#"); }} }} TheThe {{ symbol shouldsymbol should be alone on a newbe alone on a new line.line. The block after theThe block after the {{ symbol shouldsymbol should be indented by abe indented by a TABTAB.. TheThe }} symbolsymbol should be under theshould be under the correspondingcorresponding {{.. Class names should useClass names should use PascalCasePascalCase and start with aand start with a CAPITALCAPITAL letter.letter. 9
- 10. Example of Bad FormattingExample of Bad Formatting usingusing SystemSystem ;; class HelloCSharp {class HelloCSharp { staticstatic void Main( ) { Consolevoid Main( ) { Console . WriteLine ("Hello, C#" ). WriteLine ("Hello, C#" ) ;Console.;Console. WriteLine ( "Hello again"WriteLine ( "Hello again" ) ;}}) ;}} Such formattingSuch formatting makes themakes the source codesource code unreadable.unreadable. 10
- 11. What is "C#"?What is "C#"? Programming languageProgramming language A syntax that allow to give instructions to theA syntax that allow to give instructions to the computercomputer C# features:C# features: New cutting edge languageNew cutting edge language Extremely powerfulExtremely powerful Easy to learnEasy to learn Easy to read and understandEasy to read and understand Object-orientedObject-oriented 11
- 12. What You Need to Program?What You Need to Program? Knowledge of a programming languageKnowledge of a programming language C#C# Task to solveTask to solve Development environment, compilers, SDKDevelopment environment, compilers, SDK Visual StudioVisual Studio,, .NET Framework SDK.NET Framework SDK Set of useful standard classesSet of useful standard classes Microsoft .NET Framework FCLMicrosoft .NET Framework FCL Help documentationHelp documentation MSDN LibraryMSDN Library 12
- 13. Your First C# ProgramYour First C# Program Live DemoLive Demo
- 14. What is .NETWhat is .NET Framework?Framework?
- 15. What is .NET Framework?What is .NET Framework? Environment for execution of .NET programsEnvironment for execution of .NET programs Powerful library of classesPowerful library of classes Programming modelProgramming model Common execution engine for manyCommon execution engine for many programming languagesprogramming languages C#C# Visual Basic .NETVisual Basic .NET Managed C++Managed C++ ... and many others... and many others 15
- 16. Operating System (OS)Operating System (OS) Common Language Runtime (CLR)Common Language Runtime (CLR) Base Class Library (BCL)Base Class Library (BCL) ADO.NET, LINQ and XML (Data Tier)ADO.NET, LINQ and XML (Data Tier) WCF and WWF (Communication and Workflow Tier)WCF and WWF (Communication and Workflow Tier) ASP.NETASP.NET Web Forms, MVC, AJAXWeb Forms, MVC, AJAX Mobile Internet ToolkitMobile Internet Toolkit WindowsWindows FormsForms WPFWPF SilverlightSilverlight C#C# C++C++ VB.NETVB.NET J#J# F#F# JScriptJScript PerlPerl DelphiDelphi …… Inside .NET FrameworkInside .NET Framework Building blocks of .NET FrameworkBuilding blocks of .NET Framework FCLFCL CLRCLR 16
- 17. CLR – The Heart of .NETCLR – The Heart of .NET FrameworkFramework Common Language Runtime (CLR)Common Language Runtime (CLR) Managed execution environmentManaged execution environment Executes .NET applicationsExecutes .NET applications Controls the execution processControls the execution process Automatic memory managementAutomatic memory management ((garbagegarbage collectioncollection)) Programming languages integrationProgramming languages integration Multiple versions support for assembliesMultiple versions support for assemblies Integrated type safety and securityIntegrated type safety and security CLRCLR 17
- 18. Framework Class LibraryFramework Class Library Framework Class Library (FCL)Framework Class Library (FCL) Provides basic functionality to developers:Provides basic functionality to developers: Console applicationsConsole applications WPF and Silverlight rich-media applicationsWPF and Silverlight rich-media applications Windows Forms GUI applicationsWindows Forms GUI applications Web applications (dynamic Web sites)Web applications (dynamic Web sites) Web servicesWeb services,, communication and workflowcommunication and workflow Server & desktop applicationsServer & desktop applications Applications for mobile devicesApplications for mobile devices 18
- 19. What isVisual Studio?What isVisual Studio?
- 20. Visual StudioVisual Studio Visual Studio – Integrated DevelopmentVisual Studio – Integrated Development Environment (IDE)Environment (IDE) Development tool that helps us to:Development tool that helps us to: Write codeWrite code Design user interfaceDesign user interface Compile codeCompile code Execute / test / debug applicationsExecute / test / debug applications Browse the helpBrowse the help Manage project's filesManage project's files 20
- 21. Benefits of Visual StudioBenefits of Visual Studio Single tool for:Single tool for: Writing code in many languages (C#, VB, …)Writing code in many languages (C#, VB, …) Using different technologies (Web, WPF, …)Using different technologies (Web, WPF, …) For different platforms (.NET CF, Silverlight, …)For different platforms (.NET CF, Silverlight, …) Full integration of most development activitiesFull integration of most development activities (coding, compiling, testing, debugging,(coding, compiling, testing, debugging, deployment, version control, ...)deployment, version control, ...) Very easy to use!Very easy to use! 21
- 22. Visual Studio – ExampleVisual Studio – Example 22
- 23. Visual StudioVisual Studio Compiling, Running and Debugging C# ProgramsCompiling, Running and Debugging C# Programs
- 24. Creating New Console ApplicationCreating New Console Application 1.1. FileFile NewNew Project ...Project ... 2.2. Choose C# console applicationChoose C# console application 3.3. Choose project directory and nameChoose project directory and name 24
- 25. Creating New Console Application (2)Creating New Console Application (2) 4.4. Visual Studio creates some source code for youVisual Studio creates some source code for you NamespaceNamespace not requirednot required Class nameClass name should beshould be changedchanged Some importsSome imports are not requiredare not required 25
- 26. Compiling Source CodeCompiling Source Code The process ofThe process of compilingcompiling includes:includes: Syntactic checksSyntactic checks Type safety checksType safety checks Translation of the source code to lower levelTranslation of the source code to lower level language (MSIL)language (MSIL) Creating of executable files (assemblies)Creating of executable files (assemblies) You can start compilation byYou can start compilation by UsingUsing Build->Build Solution/ProjectBuild->Build Solution/Project PressingPressing [[F6]F6] oror [Shift+Ctrl+B][Shift+Ctrl+B] 26
- 27. Running ProgramsRunning Programs The process ofThe process of runningrunning application includes:application includes: Compiling (if project not compiled)Compiling (if project not compiled) Starting the applicationStarting the application You can run application by:You can run application by: UsingUsing Debug->StartDebug->Start menumenu By pressingBy pressing [F5][F5] oror [Ctrl+F5][Ctrl+F5] * NOTE: Not all types of projects are able to be* NOTE: Not all types of projects are able to be started!started! 27
- 28. Debugging The CodeDebugging The Code The process ofThe process of debuggingdebugging application includes:application includes: Spotting an errorSpotting an error Finding the lines of code thatFinding the lines of code that cause the errorcause the error Fixing the codeFixing the code Testing to check if the error isTesting to check if the error is gone and no errors are introducedgone and no errors are introduced Iterative and continuous processIterative and continuous process 28
- 29. Debugging in Visual StudioDebugging in Visual Studio Visual Studio has built-in debuggerVisual Studio has built-in debugger It provides:It provides: BreakpointsBreakpoints Ability to trace the code executionAbility to trace the code execution Ability to inspect variables at runtimeAbility to inspect variables at runtime 29
- 30. Visual StudioVisual Studio Compiling, Running and Debugging C# ProgramsCompiling, Running and Debugging C# Programs LiveLive DemoDemo
- 31. What is MSDNWhat is MSDN Library?Library?
- 32. What is MSDN Library?What is MSDN Library? Complete documentation of all classes andComplete documentation of all classes and their functionalitytheir functionality With descriptions of all methods, properties,With descriptions of all methods, properties, events, etc.events, etc. With code examplesWith code examples Related articlesRelated articles Library of samplesLibrary of samples Use local copy or the Web version atUse local copy or the Web version at http://http:// msdn.microsoft.com/msdn.microsoft.com/ 32
- 34. How to Use MSDN Library?How to Use MSDN Library? Offline versionOffline version Use the table of contentsUse the table of contents Use the alphabetical indexUse the alphabetical index Search for phrase or keywordSearch for phrase or keyword Filter by technologyFilter by technology Browse your favorite articlesBrowse your favorite articles Online versionOnline version Use the built-in searchUse the built-in search 34
- 35. MSDN LibraryMSDN Library Browsing and Searching DocumentationBrowsing and Searching Documentation Live DemoLive Demo
- 36. Introduction to ProgrammingIntroduction to Programming Questions?Questions? http://academy.telerik.com
- 37. ExercisesExercises 1.1. Familiarize yourself with:Familiarize yourself with: Microsoft Visual StudioMicrosoft Visual Studio Microsoft Developer Network (MSDN) LibraryMicrosoft Developer Network (MSDN) Library DocumentationDocumentation Find information aboutFind information about Console.WriteLine()Console.WriteLine() method.method. 1.1. Create, compile and run a “Hello C#” consoleCreate, compile and run a “Hello C#” console application.application. 2.2. Modify the application to print your name.Modify the application to print your name. 3.3. Write a program to print the numbers 1, 101 andWrite a program to print the numbers 1, 101 and 1001.1001. 37
- 38. Exercises (2)Exercises (2) 5.5. Install at home:Install at home: 1.1. Microsoft .NET FrameworkMicrosoft .NET Framework 2.2. Microsoft Visual Studio (or Visual C# Express)Microsoft Visual Studio (or Visual C# Express) 3.3. Microsoft Developer Network (MSDN)Microsoft Developer Network (MSDN) 6.6. Create console application that prints your first andCreate console application that prints your first and last name.last name. 7.7. Create a console application that prints the currentCreate a console application that prints the current date and time.date and time. 8.8. Create a console application that calculates andCreate a console application that calculates and prints the square of the number 12345.prints the square of the number 12345. 38
- 39. Exercises (3)Exercises (3) 9.9. Write a program that prints the first 10 members ofWrite a program that prints the first 10 members of the sequence: 2, -3, 4, -5, 6, -7, ...the sequence: 2, -3, 4, -5, 6, -7, ... 10.10. Provide a short list with information about the mostProvide a short list with information about the most popular programming languages. How do they differpopular programming languages. How do they differ from C#?from C#? 11.11. Describe the difference between C# and .NETDescribe the difference between C# and .NET Framework.Framework. 12.12. * Write a program to read your age from the console* Write a program to read your age from the console and print how old you will be after 10 years.and print how old you will be after 10 years. *NOTE: If you have any difficulties, search in Google.*NOTE: If you have any difficulties, search in Google. 39