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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

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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 20%

◦ Final : 20%◦ 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%

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This course contains material that

demands intense mental work and an

unusual amount of time commitment.

Student dedication is advised.

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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)

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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

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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.

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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 oneproblem-Database projects are NOT accepted)

Note : Pls dont just directly copy the code from Internet or somewhere as your project- If we know that is copiedsomewhere we will penalty its grade as 0 (zero)

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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 “AcademicIntegrity”)

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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.

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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

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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?

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Computer programming: creating a sequence of instructions to enable the computer to do something

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Programmers do not use machine language when creating computer programs. Instead, programmers tend to use high-level programming languagesEach high-level language has its own syntax and limited set of vocabulary that is translated into machine code by a compiler

Define a task/problem

Plan your solution◦ Find suitable algorithm to solve it

◦ Find suitable data structures to use

Write code

Fix program error (bugs)

Make your customer happy

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= Specification

= Design

= Implementation

= Testing & Debugging

= Deployment

Wikipedia.org definition for C#.◦ 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 ManufacturersAssociation) standardized.

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Sample C# Console Application program:

using System;

namespace ConsoleApplication;class HelloCSharp{

static void Main(string[] args){

Console.WriteLine("Hello, C#");}

}

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using System;

class HelloCSharp{

static void Main(){

Console.WriteLine("Hello, C#");}

}

Include the standard

namespace "System"

Define a class called

"HelloCSharp"

Define the Main() method – the

program entry point

Print a text on the console by

calling the method "WriteLine" of the class "Console"

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using System;

class HelloCSharp{

static void Main(){

Console.WriteLine("Hello, C#");}

}

The { symbol should be alone on a new line.

The block after the {symbol should be

indented by a TAB.The } symbol should

be under the

corresponding {.

Class names should useHelloCsharp

and start with a CAPITAL letter.

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using System

;

class HelloCSharp {static

void Main( ) { Console. WriteLine ("Hello, C#" ) ;Console.

WriteLine ( "Hello again") ;}}

Such formatting makes the source code

unreadable.

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

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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

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Operating System (OS)

Common Language Runtime (CLR)

Base Class Library (BCL)

ADO.NET, LINQ and XML (Data Tier)

WCF and WWF (Communication and Workflow Tier)

ASP.NETWeb Forms, MVC, AJAXMobile Internet Toolkit

WindowsForms

WPF Silverlight

C# C++ VB.NET J# F# JScript Perl Delphi …

Building blocks of .NET Framework

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FCL

CLR

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)

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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

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CLR

Class Loader

MSIL to NativeCompilers (JIT)

CodeManager

GarbageCollector (GC)

Security Engine Debug Engine

Type Checker Exception Manager

Thread Support COM Marshaler

Base Class Library Support

From MSDN

CLR via C#, Jeffrey Richter

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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.

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

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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

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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!

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1. File New Project ...2. Choose C# console application3. Choose project directory and name

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4. Visual Studio creates some source code for you

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Namespace not required

Class name should be

changed

Some imports are not required

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]

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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]

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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

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Visual Studio has built-in debugger

It provides:◦ Breakpoints

◦ Ability to trace the code execution

◦ Ability to inspect variables at runtime

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Live Demo-Example 01-01, 01-02

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Questions?

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1. Create console application that prints your first and last name.

2. Write a program to print the numbers 1, 101 and 1001.

3. Create a console application that prints the current date and time.

4. Create a console application that calculates and prints the square

of the number 1234.

5. Write a program that prints the first 10 members of the sequence:

2, -3, 4, -5, 6, -7, ...

6. Write a program to read your age from the console and print how

old you will be after 10 years.

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