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Object-oriented Programming in C# Introduction to C# * The C# Language and System C# seen in a historic perspective The Common Language Infrastructure CLI Overview from Wikipedia C# Compilation and Execution * C# in relation to C Simple types Enumerations types Non-simple types Arrays and Strings Pointers and references Structs Operators Commands and Control Structures Functions Input and output Comments * C# in relation to Java C# versus Java Types Operations Other substantial differences * C# in relation to Visual Basic The Overall Picture The Overall Picture Declarations and Types Declaration and Types Expressions and Operators Expressions and Operators Control Structures for Selection Control structures for Selection Control Structures for Iteration Control structures for iteration Arrays Arrays Procedures and Functions Procedures and Functions Combined C# and Visual Basic Programming Object-oriented programming in Visual Basic * C# Tools and IDEs C# Tools on Windows C# Tools on Unix Documentation Tools

Differences Several different parameter passing techniques in C# Call by value. For input. No modifier. Call by reference. For input and output or output only Input and output: Modifier ref Output: Modifier out Modifiers used both with formal and actual parameters Functions with a variable number of input parameters in C# (cleaner than in C) Overloaded function members in C# First class functions (delegates) in C#

Demonstration of simple functions in C#.

Demonstration of parameter passing in C#.

Demonstration of overloaded methods in C#.