The difference between getFields() method and getdeclaraedfields () method in JAVA reflection
There are two ways to get the fields of a class: getFields() and getdeclaraedfields(). Let's look at the difference between the two first: getFields(): get all the public fields of a class, including the fields in the parent class. Getdeclaraedfields(): get all declared fields of a class, incluUTF-8...
Posted by andylyon87 on Fri, 24 Sep 2021 18:45:05 +0530
Guide to using delay queue in Java
1. Introduction In this article, you'll learn about the DelayQueue construct in the java.util.concurrent package. This is a blocking queue that can be used in producer consumer programs. It has a very useful feature - when a consumer wants to take an element out of the queue, it can only take iUTF-8...
Posted by riddhi on Fri, 24 Sep 2021 19:29:27 +0530
MyBatis learning 9 introduction case complex query
1, Mapping entity classes in the Orders class (one-to-one mapping) 1. Add a user object in the Orders class under the POJO class as an attribute of the Orders package com.pp.pojo; import java.util.Date; public class Orders { private Integer id; private Integer userid; private String number; priUTF-8...
Posted by johnb352 on Fri, 24 Sep 2021 19:39:29 +0530
Multiple verification artifact responsibility chain mode
background Recently, I was working on requirements. I wrote a method. I first verified it in front. if condition a is not met, return. if condition B is not met, return... A total of 5 verifications were written. After the verification is passed, the following logic will be executed. This is noUTF-8...
Posted by lordrt on Fri, 24 Sep 2021 20:54:31 +0530
Decorator mode of design mode
summary Decorator Pattern allows you to add new functionality to an existing object without changing its structure. This type of design pattern belongs to structural pattern, which is a wrapper for existing classes. This pattern creates a decoration class to wrap the original class, and providUTF-8...
Posted by gtzpower on Fri, 24 Sep 2021 21:19:31 +0530
How to configure the thread pool rejection policy in the programming language Spring Boot to properly handle the overflow task
How to configure the thread pool rejection policy in the programming language Spring Boot to properly handle the overflow task Through the previous three blog posts on the implementation of Spring Boot asynchronous tasks, we learned Create asynchronous task with @ Async,Configure thread pools fUTF-8...
Posted by BlooPanthr on Sat, 25 Sep 2021 06:00:29 +0530
Introduction to Java for beginners 200 examples 65 of Java sort() array sorting
Introduction to the author Author name: Ming Shiyin in programming world Introduction: CSDN blog expert has been engaged in software development for many years and is proficient in Java and JavaScript. Bloggers also learn and grow step by step from scratch, know the importance of learning and aUTF-8...
Posted by liquorvicar on Sat, 25 Sep 2021 06:40:00 +0530
Calculation of birth eight characters
The eight characters of birth, which we often say, are used to express the year, month, day and hour of a person's birth. Together, they are eight characters. Ten days dry, methyl ethyl propylene Ding Wu Ji Geng Xin Ren GUI. Twelve Earthly Branches, ZiChou Yinmao, have not applied for youxuhai UTF-8...
Posted by tommyinnn on Sat, 25 Sep 2021 10:42:46 +0530
neo4j development record
docker setup Pull image docker pull neo4j start-up docker run -d --name myneo4j \ -p 7474:7474 -p 7687:7687 \ -v /home/neo4j/data:/data \ -v /home/neo4j/logs:/logs \ -v /home/neo4j/conf:/var/lib/neo4j/conf \ -v /home/neo4j/import:/var/lib/neo4j/import \ --env NEO4J_AUTH=neo4j/meiya \ neo4j If UTF-8...
Posted by julieb on Sat, 25 Sep 2021 10:59:04 +0530
GUI programming (crazy God learning notes)
Getting started with GUI programming Introduction to GUI programming How? what is it? How does it play? How to use it in our daily life? Components: window, pop-up window, panel, text box, list item, button, picture, monitoring event, mouse, keyboard event, cracking tool Gui core technology: SwUTF-8...
Posted by opencombatclan on Sat, 25 Sep 2021 13:03:02 +0530