Titlebook: C# Quick Syntax Reference; Mikael Olsson Book 2013 Mikael Olsson 2013

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Class,A class is a template used to create objects. They are made up of members, the main two of which are fields and methods. Fields are variables that hold the state of the object, while methods define what the object can do.

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Indexers,Indexers allow an object to be treated as an array. They are declared in the same way as properties, except that the . keyword is used instead of a name and their accessors take parameters. In the example below, the indexer corresponds to an object array called ., so the type of the indexer is set to ..

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Interface,An interface is used to specify members that deriving classes must implement. They are defined with the . keyword followed by a name and a code block. Their naming convention is to start with a capital "I" and then to have each word initially capitalized.

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Abstract,An abstract class provides a partial implementation that other classes can build on. When a class is declared as abstract it means that the class can contain incomplete members that must be implemented in derived classes, in addition to normal class members.

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Umgang mit Exponentialkurven (e-Funktionen),olon. Rectangle then becomes the base class of Square, which in turn becomes a derived class of Rectangle. In addition to its own members, Square gains all accessible members in Rectangle, except for any constructors and destructor.