Sharpen your knowledge of C#
C# know-how is a must if you want to be a professional Microsoft developer. It's also good to know a little C# if you're building tools for the web, mobile apps, or other development tasks. C# 7.0 All-in-One For Dummies offers a deep dive into C# for coders still learning the nuances of the valuable programming language. Pop it open to get an intro into coding with C#, how to design secure apps and databases, and even pointers on building web and mobile apps with C#.
C# remains one of the most in-demand programming language skills. The language regularly ranks in the top five among "most in-demand" languages, typically along with Java/JavaScript, C++, and Python. A December 2016 ZDNet article noted 'If your employer is a Microsoft developer, you better know C#." Lucky for you, this approachable, all-in-one guide is here to help you do just that--without ever breaking a sweat!
Includes coverage of the latest changes to C#
* Shows you exactly what the language can (and can't) do
* Presents familiar tasks that you can accomplish with C#
* Provides insight into developing applications that provide protection against hackers
If you have a basic understanding of coding and need to learn C#--or need a reference on the language in order to launch or further your career--look no further.
Autorentext
John Paul Mueller is a writer on programming topics like AWS, Python, Java, HTML, CSS, and JavaScript. William Sempf is a programmer and .NET evangelist. Chuck Sphar was a full-time senior technical writer for the Visual C++ product group at Microsoft.
Zusammenfassung
Sharpen your knowledge of C#
C# know-how is a must if you want to be a professional Microsoft developer. It's also good to know a little C# if you're building tools for the web, mobile apps, or other development tasks. C# 7.0 All-in-One For Dummies offers a deep dive into C# for coders still learning the nuances of the valuable programming language. Pop it open to get an intro into coding with C#, how to design secure apps and databases, and even pointers on building web and mobile apps with C#.
C# remains one of the most in-demand programming language skills. The language regularly ranks in the top five among "most in-demand" languages, typically along with Java/JavaScript, C++, and Python. A December 2016 ZDNet article noted 'If your employer is a Microsoft developer, you better know C#." Lucky for you, this approachable, all-in-one guide is here to help you do just thatwithout ever breaking a sweat!
Includes coverage of the latest changes to C#
- Shows you exactly what the language can (and can't) do
- Presents familiar tasks that you can accomplish with C#
- Provides insight into developing applications that provide protection against hackers
If you have a basic understanding of coding and need to learn C#or need a reference on the language in order to launch or further your careerlook no further.
Inhalt
Introduction 1
About This Book 1
Foolish Assumptions 2
Icons Used in This Book 2
Beyond the Book 3
Where to Go from Here 4
Book 1: The Basics of C# Programming 5
Chapter 1: Creating Your First C# Console Application 7
Getting a Handle on Computer Languages, C#, and .NET 7
Creating Your First Console Application 11
Making Your Console App Do Something 17
Reviewing Your Console Application 18
Introducing the Toolbox Trick 21
Chapter 2: Living with Variability Declaring Value-Type Variables 23
Declaring a Variable 24
What's an int? 25
Representing Fractions 27
Handling Floating-Point Variables 28
Using the Decimal Type: Is it an Integer or a Float? 31
Examining the bool Type: Is it Logical? 33
Checking Out Character Types 33
What's a Value Type? 36
Comparing string and char 37
Calculating Leap Years: DateTime 38
Declaring Numeric Constants 40
Changing Types: The Cast 41
Letting the C# Compiler Infer Data Types 42
Chapter 3: Pulling Strings 45
The Union is Indivisible, and So are Strings 46
Performing Common Operations on a String 48
Comparing Strings 48
What If I Want to Switch Case? 53
Looping through a String 54
Searching Strings 55
Getting Input from the Command Line 57
Controlling Output Manually 62
Formatting Your Strings Precisely 68
StringBuilder: Manipulating Strings More Efficiently 73
Chapter 4: Smooth Operators 75
Performing Arithmetic 75
Performing Logical Comparisons Is That Logical? 79
Matching Expression Types at TrackDownAMate.com 83
Chapter 5: Getting into the Program Flow 89
Branching Out with if and switch 90
Here We Go Loop-the-Loop 101
Looping a Specified Number of Times with for 112
Nesting Loops 115
Don't goto Pieces 116
Chapter 6: Lining Up Your Ducks with Collections 119
The C# Array 120
Processing Arrays by Using foreach 126
Sorting Arrays of Data 128
Using var for Arrays 132
Loosening Up with C# Collections 133
Understanding Collection Syntax 134
Using Lists 136
Using Dictionaries 139
Array and Collection Initializers 141
Using Sets 142
On Not Using Old-Fashioned Collections 147
Chapter 7: Stepping through Collections 149
Iterating through a Directory of Files 149
Iterating foreach Collections: Iterators 157
Accessing Collections the Array Way: Indexers 160
Looping Around the Iterator Block 165
Chapter 8: Buying Generic 177
Writing a New Prescription: Generics 178
Classy Generics: Writing Your Own 179
Revising Generics 197
Chapter 9: Some Exceptional Exceptions 201
Using an Exceptional Error-Reporting Mechanism 202
Throwing Exceptions Yourself 207
Knowing What Exceptions are for 207
Can I Get an Exceptional Example? 208
Assigning Multiple catch Blocks 211
Planning Your Exception-Handling Strategy 214
Grabbing Your Last Chance to Catch an Exception 219
Throwing Expressions 220
Chapter 10: Creating Lists of Items with Enumerations 223
Seeing Enumerations in the Real World 224
Working with Enumerations 225
Creating Enumerated Flags 228
Defining Enumerated Switches 230
...