Design pattern (Design pattern) is a set of classified and cataloged summary of code design experience that is used repeatedly, known to most people. The purpose of using design patterns is to reuse code, make the code easier to understand by others, and ensure code reliability. There is no doubt that design patterns are win-win for ourselves, others, and the system; design patterns make code writing truly engineering; design patterns are the cornerstone of software engineering, just like the structure of a building.
This tutorial will teach you the concept of design patterns step by step through Java examples. Start learning design patterns now! Who should read this tutorial? Whether you are a newbie or an experienced user, this tutorial is worth reading.