Java Basic Grammar - Polymorphism

Basic Introduction Polymorphism: Multiple states. Method or object has many forms, the third feature of object-oriented. Polymorphism is based on encapsulation and inheritance. Reflect Specifically Polymorphism of methods Both overrides and overloads of methods can be polymorphic Example: public class PolyMethod { public static void ...

Added by mits on Sun, 19 Sep 2021 20:13:13 +0300

Software design pattern

Software design pattern Software Design Pattern, also known as design pattern, is a summary of code design experience that is repeatedly used, known by most people, classified and catalogued. It describes some recurring problems in the software design process and the solutions to the problems. In other words, it is a series of routines to sol ...

Added by mayus on Sun, 19 Sep 2021 18:49:01 +0300

Strategy mode and responsibility chain mode

1, Strategy mode Strategy Pattern, also known as policy pattern, encapsulates the defined algorithm families and so that they can be replaced with each other, so that the change of the algorithm will not affect the users using the algorithm. It belongs to behavioral mode. Define a family of algor ithms, encapsulate each one, and make them ...

Added by dansk on Sun, 19 Sep 2021 17:09:23 +0300

[Antd] how to clear the filter items after the Table component data is re rendered

First, let's talk about the scene I encountered: As shown in the figure above, after clicking the operation button, the list data will be re requested and the list data will be updated. At this time, if I filter the Age column first, and then click the operation button to update the data, I will find that the data rendered on the list is fil ...

Added by Qaid on Sun, 19 Sep 2021 16:36:50 +0300

The problem of clockwise rotation m times of n-order matrix in Java

preface Today, I took part in a written test and came up with this question. I didn't do it in the end. It's a real dish. After the written examination, I thought again and finally realized the requirements of the topic subject The requirements of the topic are as follows (I can't remember): First enter an integer n, the range seems to be [ ...

Added by jeva39 on Sun, 19 Sep 2021 15:36:03 +0300

CSS Advanced Structure and Layout

CSS Advanced (6) Structure and Layout 1. Adaptive internal elements Solution CSS Internal and External Size Models: http://w3.org/TR/css3-sizing The new keyword for the width and height attributes: min-content, which resolves to the width of the largest non-breakable element inside the container (that is, the widest word, picture, or bo ...

Added by ERuiz on Sun, 19 Sep 2021 18:41:14 +0300