Programmer Think

*** Class definitions and class members Define a class: class Box { private: double length; // Length of a box double breadth; // Breadth of a box double height; // Height of a box public: double getArea(); }; The defined class has the following properties: class name, class members (including da ...

preface This blog post mainly introduces the function definition of Go language and its usage. Declaring and using functions In Go language, the format of function declaration is as follows: func function_name([parameter list])[return_types]{ //Function body } When you use the compiler for development, such as GoLand, you will find t ...

In this section, we will introduce the advanced modules provided by Django. Through the study of advanced modules, you will feel that Django is so easy to use, but at the same time it is very complex. Therefore, when learning such a heavy framework as Django, we must remember to be impatient and dare to explore new knowledge, In addition to fol ...

1, Lambda expression 1. Examples of Lambda expressions @Test public void test1(){ Runnable r1 = new Runnable() { @Override public void run() { System.out.println("I Love Beijing Tiananmen "); } }; r1.run(); System.out.println("********************** ...

Recently, I have learned some JNDI vulnerability utilization chains that master is looking for, and I have benefited a lot. I also try to do some mining on JNDI vulnerability utilization. At present, I think of two questions in the process of JNDI utilization. It is inconvenient to test that every JNDI Bypass chain needs to change the URL manu ...

applicationContext basic configuration IOC configuration 1. Basic configuration <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/ ...

Opening words I hope you can learn this article with questions. Here I put forward two questions for you. The first Netty is where a new connection is detected. How does the second new connection register with the nioeventloop thread. netty new connection access processing logic: To detect new connection access, poll the accept event thr ...

Lock (Synchronized) Before the emergence of Lock interface, the concurrent safe processing of multithreading in Java applications can only be solved based on the synchronized keyword. However, synchronized has some shortcomings in some scenarios, that is, it is not suitable for all concurrent scenarios. However, after Java 5, the emergence ...

Like and watch again, form a habit! The day before yesterday, I saw a reader sharing several Shell script example topics in the group. I simply saw them. Why not write and consolidate the basic knowledge, as follows: 1. Obtain the hostname from several machines concurrently, record the time spent returning the information, and redirect to a ...

Life is short, learn Python! How to learn Python is the fastest. Of course, it is a variety of small projects in actual combat. Only when you think and write, can you remember the rules. Today I share with you 30 minimalist tasks, which beginners can try to achieve by themselves; This article is also 30 pieces of code. Python developers can al ...