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In Java (and Ada, C#, and others), namespaces/packages express semantic categories of code. For example, in C#, namespace System contains code provided by the system (the .NET Framework). How specific these categories are and how deep the hierarchies go differ from language to language.
In C#, namespaces are similar to those in C++. Unlike package names in Java, a namespace is not in any way tied to the location of the source file. While it is not strictly necessary for a Java source file location to mirror its package directory structure, it is the conventional organization.
namespace name; Java class name« extends parentclass»« implements interfaces» { members} interface name« extends parentinterfaces» {members } package name; members: PHP namespace name; members: Objective-C @interface name« : parentclass» [8] «< protocols >» { instance_fields} method_and_property_declarations @end
A C# namespace provides the same level of code isolation as a Java package or a C++ namespace, with very similar rules and features to a package. Namespaces can be imported with the "using" syntax. Namespaces can be imported with the "using" syntax.
namespace FooNamspace {// Members} namespace FooNamspace.BarNamespace {// Members} In C# 10 and later, namespaces can also be defined using file-scoped declarations by doing the following: [ 13 ] namespace FooNamespace ; // the brackets are omitted here in favor of a semicolon.
The .NET Framework Class Library (FCL) is organized in a hierarchy of namespaces. Most of the built-in application programming interfaces (APIs) are part of either System.* or Microsoft.* namespaces. These class libraries implement many common functions, such as file reading and writing, graphic rendering, database interaction, and XML document ...
This is a high performance, typesafe numerical array set of classes and functions for general math, FFT and linear algebra. The library, developed for .NET/Mono, aims to provide 32- and 64-bit script-like syntax in C#, 2D & 3D plot controls, and efficient memory management. It is released under GPLv3 or commercial license. [10]
In some scenarios a namespace requires that the global elements that compose it are initialized and finalized by a function or method call. In many programming languages, namespaces are not directly intended to support an initialization process nor a finalization process, and are therefore not equivalent to modules. That limitation can be ...