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In languages that support polymorphism and type casting, the typeof operator may have one of two distinct meanings when applied to an object. In some languages, such as Visual Basic, [1] the typeof operator returns the dynamic type of the object. That is, it returns the true, original type of the object, irrespective of any type casting.
Visual Basic (VB), originally called Visual Basic .NET (VB.NET), is a multi-paradigm, object-oriented programming language, implemented on .NET, Mono, and the .NET Framework. Microsoft launched VB.NET in 2002 as the successor to its original Visual Basic language, the last version of which was Visual Basic 6.0.
Depending on the type system of a programming language, variables may only be able to store a specified data type (e.g. integer or string). Alternatively, a datatype may be associated only with the current value, allowing a single variable to store anything supported by the programming language. Variables are the containers for storing the values.
The object-oriented Simula programming language was used mainly by researchers involved with physical modelling, such as models to study and improve the movement of ships and their content through cargo ports. [10] Simula is generally accepted as being the first language with the primary features and framework of an object-oriented language. [11]
In fact, languages with a dynamic type system often have variant as the only available type for variables. Among the major changes in Visual Basic .NET, being a .NET language, the variant type was replaced with the .NET object type. There are similarities in concept, but also major differences, and no direct conversions exist between these two ...
OpenOffice Basic is a Visual Basic compatible interpreter that originated in StarOffice office suite. Gambas is a Visual Basic inspired free software programming language for the Linux operating system. It is not a clone of Visual Basic, but it does have the ability to convert Visual Basic programs to Gambas.
Visual Basic is a name for a family of programming languages from Microsoft. It may refer to: Visual Basic (.NET), the current version of Visual Basic launched in 2002 which runs on .NET; Visual Basic (classic), the original Visual Basic supported from 1991 to 2008; Embedded Visual Basic, the classic version geared toward embedded applications
In computer programming, a declaration is a language construct specifying identifier properties: it declares a word's (identifier's) meaning. [1] Declarations are most commonly used for functions, variables, constants, and classes, but can also be used for other entities such as enumerations and type definitions. [1]