Creating and Running Your First C# Program

: http://eembdersler.wordpress.com Choose the EEE-425Programming Languages (Fall) Textbook reading schedule Pdf lecture notes Updated class syllabus Midterm and final exams grades Answers of Midterm and Final Exam 2

Texts and Other Course Materials Programming C#, 4th Edition - Jesse Liberty (You may down this version the book from Internet - It is your responsibility to download it or buy the book from http://www.amazon.com/programming-c-jesse- Liberty/dp/B00006AVR5) Beginning.C.Sharp.3.0.An.Introduction Internet Materials Grading : Assignments 20% Midterm 15% Final : 25% Project : 40% ( Presentation, code and short report) Bonus : 10% ( If you follow all course no exception, you will get extra 10% of your grade) Total 110% 3

This course contains material that demands intense mental work and an unusual amount of time commitment. Student dedication is advised. 4

Instructor s expectations: Homework. Read chapters prior to class from the textbook Expect 2-4 hours outside classroom activities; Reading Participate. Ask questions. Contribute. Actively participate in the exercises. Consider the classroom to be a mental gymnasium where it s ok to run, fall, and get up again Take notes. Why let any idea get away? Taking notes will help you concentrate and organize your thoughts Notes allow you to take a refresher any time in the future. Enjoy yourself. Start relaxed and you ll leave refreshed, inspired, and recharged Forget about what s happening at home or at work This is your time. Get all you can out of this course and have a good time Excessive Late assignments: 10% penalty from the grade assigned for each day ( maximum 2 days) 5

Refer to the syllabus for details regarding Academic dishonesty NOCHEATHING is allowed for all materials. Given and taken person will be punished with less notes( 0) Attendance : 70% of Lectures Special attention for the class 6

Covers (most of) the C# language and some of the most useful.net API s. Should not be your first programming class. Assume you know C++ and basic object-oriented programming. Requires (lots of) practice / reading. C# and.net cannot be learned thoroughly in this brief course. 7

Require do all assignments Assignments are You will not be given a detailed grade Show me that you understand the concepts, and can write C# code Do a project that related with technical EEE by using C# ( It is important to apply your knowledge to one problem) Note : Pls dont just directly copy the code from Internet or somewhere as your project- If we know that is copied somewhere we will penalty its grade as 0 (zero) 8

Missing class sessions Failure to do homework Poor sleeping, drinking, eating, and physical exercise habits Failure to follow textbook Failure to prioritize and budget time for study, work, and social activities Copying other people s homework, quiz, or exam (Read Academic Integrity ) 9

To do well in this class, you have to work really hard. You need to be prepared to dedicate a significant amount of time and mental effort on this class. 10

can determine your grade in this class can make the choice to be successful can choose how you use your time can do the work of learning 11

1. What is Computer Programming? 2. Your First C# Program 3. What is.net Framework? 4. What is Visual Studio? 5. What is MSDN Library? 12

Computer programming: creating a sequence of instructions to enable the computer to do something Definition by Google 14

Define a task/problem Plan your solution Find suitable algorithm to solve it Find suitable data structures to use = Specification = Design Write code Fix program error (bugs) Make your customer happy = Implementation =Testing & Debugging = Deployment 15

Wikipedia.org definition. Object-oriented. Primarily imperative or procedural. LINQ (Language Integrated Query) adds some functional programming language capabilities. Structured (as opposed to monolithic). Strongly typed. ISO(International Organization for Standardization) and ECMA(European Computer Manufacturers Association) standardized. 16

Sample C# program: using System; namespace ConsoleApplication; class HelloCSharp { static void Main(string[] args) { Console.WriteLine("Hello, C#"); } } 18

Include the standard namespace "System" Define a class called "HelloCSharp" using System; class HelloCSharp { static void Main() { Console.WriteLine("Hello, C#"); } } Define the Main() method the program entry point Print a text on the console by calling the method "WriteLine" of the class "Console" 19

Class names should use HelloCsharp and start with a CAPITAL letter. using System; class HelloCSharp { static void Main() { Console.WriteLine("Hello, C#"); } } The } symbol should be under the corresponding {. The { symbol should be alone on a new line. The block after the { symbol should be indented by a TAB. 20

Such formatting makes the source code unreadable. System using ; class HelloCSharp { static void Main( ) { Console. WriteLine ("Hello, C#" ) ;Console. WriteLine ( "Hello again" ) ;}} 21

using like import in Java: bring in namespaces namespace disambiguation of names like Internet hierarchical names and C++ naming class like in C++ or Java single inheritance up to object

static void Main() Defines the entry point for an assembly. Four different overloads taking string arguments and returning int s. Console.WriteLine(Write) Takes a formatted string: Composite Format Indexed elements: e.g., {0} can be used multiple times only evaluated once {index [,alignment][:formatting]}

Programming language A syntax that allow to give instructions to the computer C# features: New cutting edge language Extremely powerful Easy to learn Easy to read and understand Object-oriented 24

Live Demo-Example 01-01, 01-02 25

Environment for execution of.net programs Powerful library of classes Programming model Common execution engine for many programming languages C# Visual Basic.NET Managed C++... and many others 27

Building blocks of.net Framework C# C++ VB.NET J# F# JScript Perl Delphi ASP.NET Web Forms, MVC, AJAX Mobile Internet Toolkit Windows Forms WPF Silverlight WCF and WWF (Communication and Workflow Tier) FCL ADO.NET, LINQ and XML (Data Tier) Base Class Library (BCL) Common Language Runtime (CLR) CLR Operating System (OS) 29

The common classes that are used in many programs System.Console.WriteLine XML, Networking, Filesystem, Crypto, containers Can inherit from many of these classes Many languages run on.net framework C#, C++, J#, Visual Basic even have Python (see IronPython)

Common Language Runtime (CLR) Managed execution environment Executes.NET applications Controls the execution process Automatic memory management (garbage collection) Programming languages integration Multiple versions support for assemblies Integrated type safety and security CLR 32

Base Class Library Support Thread Support Type Checker Security Engine COM Marshaler Exception Manager Debug Engine MSIL to Native Compilers (JIT) Code Manager Class Loader From MSDN Garbage Collector (GC)

CLR via C#, Jeffrey Richter

CLR is actually an implementation by Microsoft of the CLI (Common Language Infrastructure). CLI is an open specification. CLR is really a platform specific implementation. 35

Framework Class Library (FCL) Provides basic functionality to developers: Console applications WPF(Windows Presentation Framework) and Silverlight rich-media applications Windows Forms GUI applications Web applications (dynamic Web sites) Web services, communication and workflow Server & desktop applications Applications for mobile devices 36

Visual Studio Integrated Development Environment (IDE) Development tool that helps us to: Write code Design user interface Compile code Execute / test / debug applications Browse the help Manage project's files 39

Single tool for: Writing code in many languages (C#, VB, ) Using different technologies (Web, WPF, ) For different platforms (.NET CF, Silverlight, ) Full integration of most development activities (coding, compiling, testing, debugging, deployment, version control,...) Very easy to use! 40

Compiling, Running and Debugging C# Programs 42

1. File New Project... 2. Choose C# console application 3. Choose project directory and name 43

4. Visual Studio creates some source code for you Namespace not required Some imports are not required Class name should be changed 44

The process of compiling includes: Syntactic checks Type safety checks Translation of the source code to lower level language (MSIL) Creating of executable files (assemblies) You can start compilation by Using Build->Build Solution/Project Pressing [F6] or [Shift+Ctrl+B] 45

The process of running application includes: Compiling (if project not compiled) Starting the application You can run application by: Using Debug->Start menu By pressing [F5] or [Ctrl+F5] * NOTE: Not all types of projects are able to be started! 46

The process of debugging application includes: Spotting an error Finding the lines of code that cause the error Fixing the code Testing to check if the error is gone and no errors are introduced Iterative and continuous process 47

Visual Studio has built-in debugger It provides: Breakpoints Ability to trace the code execution Ability to inspect variables at runtime 48

Complete documentation of all classes and their functionality With descriptions of all methods, properties, events, etc. With code examples Related articles Library of samples Use local copy or the Web version at http://msdn.microsoft.com/ 50

Questions? 51

1. Create, compile and run a Hello C# console application. 2. Modify the application to print your name. 3. Write a program to print the numbers 1, 101 and 1001. 4. Create console application that prints your first and last name. 52

6. Create a console application that prints the current date and time. 7. Create a console application that calculates and prints the square of the number 12345. 8. Write a program that prints the first 10 members of the sequence: 2, -3, 4, -5, 6, - 7,... 9. Write a program to read your age from the console and print how old you will be after 10 years. 53