本文探讨了Facade设计模式的应用及其目的：简化子系统的使用。通过Facade模式，可以为复杂的子系统提供一个简洁的接口，并且通常具备高复用性和配置性。文章还提到了Java库中的JOptionPane作为Facade模式的一个实例。
1. The intent of the FACADE pattern is to provide an interface that makes a subsystem easy to use.
2. A facade class may have all static methods.
3. The JOptionPane class is one of the few examples of a facade in the Java library.
4. In some sense, Facade limit the way we apply some system.
5. A FACADE lies somewhere between the rechness of a toolkit and the specificity of a particular application.
6. demo&facade: A demo is usually a standalone, nonreusable application that shows one way to apply a subsystem; a facade is usually a configurable, reusable calss with a higher-level interface that makes the subsystem easier to use.
7. Pic:
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