UML Learning: Package Diagram Package

Introduction

What is the role of folders in Windows?

1, the document classification management

2. Avoid naming conflicts

The role of the package

A program often contains many classes, then how to manage these classes becomes a problem to be solved (grouping mechanism).

These classes may be created by different programmers, and when these classes are merged into a large system, naming conflicts (class name collisions) are often generated.

Two functions of package: grouping mechanism, namespace.

Java: Packages (package)

C #: Namespaces (namespace)

Define namespaces in C #:

Namespace namespace Name {... ｝

Introduce namespaces in C #:

The using namespace name;