[Java] To understand polymorphism, it is enough to read this article | From the shallower to the deeper, the nanny-level detailed explanation

• Introduction to the blogger: A preparatory program for studying hard~
• Blogger's homepage: @is Yaoyaozi
• The column I belong to: Adventures in Java Island [The Road from Little White to Big Brother]

foreword

In the last article [Java] still don’t understand inheritance? An article Understanding Inheritance|Introduction to Inheritance , we understand the concept of inheritance , how to establish an inheritance relationship between two classes , and some is-adetails in inheritance .

However, this is only the tip of a vast inheritance system. Today I will explain a very important point of method rewriting on the basis of inheritance and encapsulation - polymorphic polymorphic .

At the same time, polymorphism is also the third most important feature of JAVA. This is in the opening blog