csharp_tutorial-1

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C#25. PREPROCESSOR DIRECTIVES .............................................................................................. 190Preprocessor Directives in C#................................................................................................................. 190The #define Preprocessor ...................................................................................................................... 191Conditional Directives............................................................................................................................ 19226. REGULAR EXPRESSIONS..................................................................................................... 194Constructs for Defining Regular Expressions .......................................................................................... 194Character Escapes.................................................................................................................................. 194Character Classes ................................................................................................................................... 196Grouping Constructs .............................................................................................................................. 198Quantifier .............................................................................................................................................. 199Backreference Constructs ...................................................................................................................... 200Alternation Constructs........................................................................................................................... 201Substitution ........................................................................................................................................... 202Miscellaneous Constructs ...................................................................................................................... 202The Regex Class ..................................................................................................................................... 20327. EXCEPTION HANDLING ...................................................................................................... 208Exception Classes in C# .......................................................................................................................... 209Handling Exceptions .............................................................................................................................. 210Creating User-Defined Exceptions.......................................................................................................... 212Throwing Objects................................................................................................................................... 21328. FILE I/O.............................................................................................................................. 214C# I/O Classes ........................................................................................................................................ 214The FileStream Class .............................................................................................................................. 215Advanced File Operations in C# ............................................................................................................. 217Reading from and Writing to Text Files .................................................................................................. 218The StreamReader Class ........................................................................................................................ 218The StreamWriter Class ......................................................................................................................... 220vii
C#Reading from and Writing into Binary files ............................................................................................ 222The BinaryWriter Class........................................................................................................................... 224Windows File System ............................................................................................................................. 228The DirectoryInfo Class .......................................................................................................................... 228The FileInfo Class ................................................................................................................................... 23029. ATTRIBUTES....................................................................................................................... 234Specifying an Attribute .......................................................................................................................... 234Predefined Attributes ............................................................................................................................ 234AttributeUsage ...................................................................................................................................... 234Conditional ............................................................................................................................................ 235Obsolete ................................................................................................................................................ 237Creating Custom Attributes ................................................................................................................... 238Constructing the Custom Attribute ........................................................................................................ 239Applying the Custom Attribute .............................................................................................................. 24130. REFLECTION....................................................................................................................... 243Applications of Reflection ...................................................................................................................... 243Viewing Metadata ................................................................................................................................. 24331. PROPERTIES....................................................................................................................... 251Accessors ............................................................................................................................................... 251Abstract Properties................................................................................................................................ 25532. INDEXERS .......................................................................................................................... 259Use of Indexers ...................................................................................................................................... 259Overloaded Indexers.............................................................................................................................. 26233. DELEGATES........................................................................................................................ 266Declaring Delegates ............................................................................................................................... 266Instantiating Delegates .......................................................................................................................... 266viii
Page 1 and 2: C#
Page 3 and 4: C#ContentsAbout the Tutorial ......
Page 5 and 6: C#Operator Precedence in C# .......
Page 7: C#Class versus Structure ..........
Page 11 and 12: C#Properties and Methods of the Thr
Page 13 and 14: C#Delegates and Events ManagementEa
Page 15 and 16: C#Integrated Development Environmen
Page 17 and 18: C#When this code is compiled and ex
Page 19 and 20: C#width = 3.5;}public double GetAre
Page 21 and 22: C#An identifier is a name used to i
Page 23 and 24: 4. BASIC SYNTAXC#C# is an object-or
Page 25 and 26: C#The using keyword is used for inc
Page 27 and 28: C#sealed short sizeof stackalloc st
Page 29 and 30: C#short 16-bit signed integer type
Page 31 and 32: C#A @quoted string literal looks as

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