Programmer Think

What is an object? public class Cat { public int age; public String name; public char sex; public void run(int ag) { this.age=ag; } public static void main(String[] args) { Cat cat1=new Cat(); Cat cat2=new Cat(); Cat cat3=new Cat(); cat1.run(10); cat2.run(11); System.out.println(cat1.age); System.out.println(cat2.ag ...

Hello, everyone. I saw such a short video on the subway today. I wonder if I can write a similar class roll call program. At the end of the year, of course, this program can also be used for lucky draw. Now let's start practice! Like to remember to like, collect and pay attention. preparation 1,Tkinter Tkinter is the built-in TK GUI tool ...

Thread pool is a very important knowledge point and a typical application of pooling technology. I believe many people have the experience of using thread pool, but do you know the implementation principle of thread pool? In this article, we will explore the source code of thread pool. Origin of thread pool Background: with the upgradi ...

The login interface is available for every project, and it is also a small start of a project. How to design the page and the corresponding logic. 1. Interface design Everyone has different ideas and aesthetics about the interface. This time, we mainly focus on the implementation of login logic. The languages required for interface design inc ...

introduction   to learn Java, we should not only learn the basic grammar, but also learn the idea of programming, in which we should understand what is "class"? What is "object"? And the most important core idea of Java, object-oriented (oop)! This idea can simplify the complex things in life. It is also used in progra ...

Click on "end of life", pay attention to the official account. Daily delivery, dry time! 1. Background Use the flowable UI that comes with flowable to make the flow chart Use the interface used by the springboot development process to complete the business functions of the process 2. Deployment and operation of flowabl ...

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1. Internal class overview (1) Inner class: the inner part of a class is completely nested with another structure. Those nested are called inner classes, and those nested with other classes are called outer classes. Internal class: the fifth largest member of our class; Five members: attribute, method, constructor, code block and internal ...

This chapter mainly studies the basic knowledge of template formal parameters. There are three types of template parameters: type template parameters, template parameters of templates (taking templates as template parameters), and non type template parameters. Type template parameters Type template parameters are the main purpose of using te ...

Introduction: In the last article, I briefly understood the expression form of python list. Today, I'll briefly understand some operations on list. The following is in Listobject Some methods declared in the H header file, where PyList_New,PyList_SetItem was briefly read in the previous article, pylist_ I won't say more about the size method t ...