In this project , I have implemented a console application of Notification System using Design Patterns to showcase different functionalities like mode of sending ...

Design pattern repository contains various design pattern with real world example. SOLID principle with examples are available here as well. In the document, I will be updating the corresponding SOLID ...

Singleton模式看起来简单，使用方法也很方便，但是真正用好，是非常不容易，需要对Java的类，线程，内存等概念有相当的了解。本文介绍了Singleton模式的使用方法及好处。 Java Singleton模式主要作用是保证在Java应用程序中，一个类Class只有一个实例存在。 在很多 ...