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Classes are self-describing user-defined reference types. Essentially all types in the .NET Framework are classes, including structs and enums, that are compiler generated classes. Class members are private by default, but can be declared as public to be visible outside of the class or protected to be visible by any descendants of the class.
In this example, a user identifier (userId) is the key for the associated user information object. The code first attempts to get this user information from the cache using the userId key. If that does not succeed, the code retrieves the information with a database query and then stores the returned user data in the cache.
C# supports classes with properties. The properties can be simple access-er functions with a backing field, or implement arbitrary getter and setter functions. A property is read-only if there's no setter. Like with fields, there can be class and instance properties. The underlying methods can be virtual or abstract like any other method. [82]
In computer programming languages, TypeParameter is a generic label used in generic programming to reference an unknown data type, data structure, or class. TypeParameter is most frequently used in C++ templates and Java generics. TypeParameter is similar to a metasyntactic variable (e.g., foo and bar), but distinct.
In C and C++ short, long, and long long types are required to be at least 16, 32, and 64 bits wide, respectively, but can be more. The int type is required to be at least as wide as short and at most as wide as long , and is typically the width of the word size on the processor of the machine (i.e. on a 32-bit machine it is often 32 bits wide ...
In some other languages a user defined output parameter is used instead of the function identifier. [9] Oberon has a return clause instead of a return statement. The return clause is placed after the last statement of the procedure body. [10]
In a programming language, an evaluation strategy is a set of rules for evaluating expressions. [1] The term is often used to refer to the more specific notion of a parameter-passing strategy [2] that defines the kind of value that is passed to the function for each parameter (the binding strategy) [3] and whether to evaluate the parameters of a function call, and if so in what order (the ...
Plain Old CLR Object is a play on the term plain old Java object from the Java EE programming world, which was coined by Martin Fowler in 2000. [2] POCO is often expanded to plain old C# object, though POCOs can be created with any language targeting the CLR.