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You're reading from Beginning C# 7 Hands-On ?????? The Core Language Learn the C# language by coding it element by element

Product type Paperback

Published in Aug 2017

Publisher

ISBN-13 9781788296540

Length 566 pages

Edition 1st Edition

Languages

Tools

Visual Studio

Concepts

Programming Language

Author (1):

Tom Owsiak

View More author details

Table of Contents (60) Chapters

Preface

1. Why C# and How to Download and Install the Visual Studio Community Edition

2. Customizing Visual Studio to Make it Feel More Personal FREE CHAPTER

3. Creating and Running Your First Page

4. Creating and Running a Page That Incorporates C#

5. Creating and Using a Single Variable

6. String Interpolation and Updating Visual Studio

7. Formatting Output Strings for More Professional Results

8. Using Variables and Data Types

9. Computed Variables and Basic Math

10. Interacting with Users Through the Web Page

11. Using Method Chaining to Write More Compact Code

12. Reacting to a Single Condition with If/Else Blocks

Adding checkbox to your code

13. Making a Variable Grow by Adding 1

14. Repeating Blocks of Code with While Loops

15. Repeating Blocks of Code with For Loops

16. Iterating Over Collections with foreach Loops

17. Examining Multiple Variable Values with Switch Blocks

18. Improving Input Processing with TryParse

19. Replacing If/Else Blocks with the Ternary Operator

20. Operators That Evaluate and Assign in Place

21. Checking Two Conditions with the Logical AND Operator

22. Checking Two Conditions with the Logical OR Operator

23. Declaring, Setting, and Reading Arrays

24. Iterating Over Arrays with foreach Loops

25. Creating and Using a Simple Method

26. Passing Arrays into Methods

27. Reference Type and Value Type Variables

28. Creating More Flexible Methods with the params Keyword

29. Creating More Flexible Functions with the out Keyword

30. Combining the ref and out Keywords to Write Flexible Functions

31. The out Keyword in C# 7

32. Multidimensional Arrays

33. Writing Easier Code with the Var and Dynamic Keywords

34. Creating a Class with a Constructor and a Function

35. Creating a Class with a Static Method

36. Creating a Class with an Object Property

37. Creating a Class with Static Fields, and Properties

38. Centralizing Common Code with Inheritance

39. Centralizing Default Code with Virtual Functions

40. Model Concepts with Abstract Classes

41. Using Custom Types as Return Types

42. Using Lists to Operate on Data Efficiently

43. Writing Less Code with Polymorphism

44. Using Interfaces to Express Common Behaviors

45. Iterating over Instances with Indexers

46. Building Stabler Apps with Exception Handling

47. Using Named and Optional Parameters

48. Using the Null Coalescing Operator to Write Stabler Applications

49. Overloading Operators to Perform Custom Operations

50. Using Enumerations to Represent Named Constants

51. Creating and Using Namespaces

52. Structs, Random Points, and Sleeping Threads

53. Declaring, Creating, and Using Delegates

54. Switch Blocks with when in C# 7.0

55. Switch Blocks with Objects in C# 7.0

56. Tuples in C# 7.0

57. Local functions in C# 7.0

58. Throwing Exceptions in C# 7.0

59. Tuples in C# 7.0, Part 2

Understanding two-dimensional arrays

A two-dimensional array is a familiar term; it's something like an Excel table, like the one shown in Figure 5.9.1. In Excel, for example, the address of the top-left cell is A1. The address of the cell immediately to its right is B1. Then the address of the cell immediately below A1 would be A2, and that of the cell to its right would be B2:

Figure 5.9.1: An Excel table is a two-dimensional array

In C#, as with other programming languages, things are a little different. The top-left cell has the address 0,0 and the address of the cell immediately to its right is 0,1. The first number in 0,0 represents the row number; actually, the row index. So, row 1 means 0 index. The second number in 0,0 represents the column. In other words, the first column has an index of 0. If you move over to the right, the 0 in 0,1 still represents the first...

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Authors (1)

Tom Owsiak

I have eight years experience as a teacher of mathematics, physics, statistics, and programming. I worked for five years as a database programmer using various technologies such as .NET, Clipper, SQL, SQL Server, SAS, Excel, and many related technologies. I'm the publisher of one of the most successful courses on Udemy, called "Learn C# With Visual Studio 2013". Currently, I work as a mathematics, and computer science teacher at Mercy College in Dobbs Ferry, NY.

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