Libro c#

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C Development

#

Rob Miles 2008-2009

Department of Computer Science University of Hull

Contents
Introduction....................................................................................................................... 11 Welcome ............................................................................................................. 11 Reading thenotes................................................................................................ 11 Getting a copy of the notes ................................................................................. 11

Computers

12

An Introduction to Computers .......................................................................................... 12 Hardware and Software...................................................................................... 12 Data and Information ........................................................................................................ 13 Data Processing .................................................................................................. 13 Programmer’s Point:At the bottom there is always hardware ............................. 14Programming Languages

15

What is Programming? ..................................................................................................... 15 From Problem to Program .................................................................................. 15 Programmer’s Point:The specification must always be there ............................. 16 A Simple Problem............................................................................................................. 16 Specifying the Problem....................................................................................... 16 Programmer’s Point:metadata is important ......................................................... 17 Programmer’s Point:Good programmers are good communicators .................... 19 ProgrammingLanguages .................................................................................................. 19 Programmer’s Point:The language is not that important..................................... 20

C#

20
A look at C# ...................................................................................................................... 20 Dangerous C....................................................................................................... 20 Programmer’s Point:Computers are always stupid ............................................. 21 Safe C# ............................................................................................................... 21 C# and Objects................................................................................................... 21 Making C# Run .................................................................................................. 21 Creating C# Programs ........................................................................................ 22 The Human Computer ........................................................................................ 22 Programmer’s Point:Great programmers debug less.......................................... 22 What Comprises a C# Program? ....................................................................................... 22 Controlling the Compiler .................................................................................... 23 Storing the Data .................................................................................................. 23Describing the Solution ...................................................................................... 23 Identifiers and Keywords .................................................................................... 23

A First C# Program

24

The Program Example ...................................................................................................... 24 using System;...
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