C# for Java Developers

Namespaces

Namespaces are a flexible alternative to Java packages, providing a mechanism to organize types into a logical hierarchical structure and ensuring globally unique type names.

Declaring Namespaces

Java classes and interfaces are allocated to a package by using the package statement at the start of a source file. All types declared in that file become members of the specified package. In C#, membership of a namespace is specified by declaring types within the body of a namespace statement. This enables C# to support multiple namespaces in a single file, eliminating the Java requirement for namespace hierarchies to map to file system directory structures. In the following example, both MyClass and MyInterface are members of the namespace ...