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Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xix PART I INTRODUCING MICROSOFT VISUAL C# AND MICROSOFT VISUAL STUDIO 2015 Chapter 1 Welcome to C# 3 Beginning programming with the Visual Studio 2015 environment . . . . . . 3 Writing your first program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Using namespaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Creating a graphical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Examining the Universal Windows Platform app . . . . . . . . . . . . . . . .26 Adding code to the graphical application . . . . . . . . . . . . . . . . . . . . . .29 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Chapter 2 Working with variables, operators, and expressions 33 Understanding statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Using identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Identifying keywords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Using variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Naming variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Declaring variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Working with primitive data types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Unassigned local variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Displaying primitive data type values . . . . . . . . . . . . . . . . . . . . . . . . .38 Using arithmetic operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Operators and types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Examining arithmetic operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Controlling precedence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Using associativity to evaluate expressions . . . . . . . . . . . . . . . . . . . . .53 v
Associativity and the assignment operator . . . . . . . . . . . . . . . . . . . . .53 Incrementing and decrementing variables. . . . . . . . . . . . . . . . . . . . . . . . . . .54 Prefix and postfix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Declaring implicitly typed local variables . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Chapter 3 Writing methods and applying scope 59 Creating methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59 Declaring a method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 Returning data from a method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 Using expression-bodied methods . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 Calling methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 Applying scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66 Defining local scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66 Defining class scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67 Overloading methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Writing methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Using optional parameters and named arguments . . . . . . . . . . . . . . . . . . .77 Defining optional parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Passing named arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Resolving ambiguities with optional parameters and named arguments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80 Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85 Quick reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 Chapter 4 Using decision statements 87 Declaring Boolean variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87 Using Boolean operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88 Understanding equality and relational operators . . . . . . . . . . . . . . .88 Understanding conditional logical operators . . . . . . . . . . . . . . . . . . .89 Short circuiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 Summarizing operator precedence and associativity . . . . . . . . . . . .90 vi Contents
Page 1 and 2: Microsoft Visual C# Step by Step Ei
Page 3 and 4: PUBLISHED BY Microsoft Press A Divi
Page 5: PART IV BUILDING UNIVERSAL WINDOWS
Page 9 and 10: Summary. . . . . . . . . . . . . .
Page 11 and 12: Using multidimensional arrays . . .
Page 13 and 14: Using properties . . . . . . . . .
Page 15 and 16: Summary. . . . . . . . . . . . . .
Page 17 and 18: Canceling tasks and handling except
Page 20 and 21: Introduction Microsoft Visual C# is
Page 22 and 23: ■ ■ Part III, “Defining exten
Page 24 and 25: System requirements You will need t
Page 26 and 27: For those of you who like to know a
Page 28 and 29: Project/Solution Description Chapte
Page 30 and 31: Project/Solution Description Chapte
Page 32: We want to hear from you At Microso
Page 35 and 36: Note The answers to these questions
Page 37 and 38: The outcome of the || operator is t
Page 39 and 40: notice that the Boolean expression
Page 41 and 42: Cascading if statements You can nes
Page 43 and 44: private void compareClick(object se
Page 45 and 46: else if (leftHandSide.Day > rightHa
Page 47 and 48: Understanding switch statement synt
Page 49 and 50: in a switch statement (even the def
Page 51 and 52: If the current character being copi
Page 54 and 55: Index Symbols & (ampersand) & (AND)
Page 56 and 57:
inary operators creating, 232-241 d
Page 58 and 59:
code CanExecuteChanged events, 670,
Page 60 and 61:
CountdownEvent class concurrent ope
Page 62 and 63:
Ellipse class for structures, 209 w
Page 64 and 65:
forms exception objects, 144 except
Page 66 and 67:
indexers H handheld devices. See Un
Page 68 and 69:
lock statements I/O operations asyn
Page 70 and 71:
Name property invoking through dele
Page 72 and 73:
Parallel.Invoke method okClick meth
Page 74 and 75:
eference types number of, 521 Progr
Page 76 and 77:
static properties security, unsafe
Page 78 and 79:
throughput, improving System.String
Page 80 and 81:
views voice activation, 680-695 Win
Page 82:
yield keyword blocking current thre
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