Java keyword: static

preface The blogger will use CSDN to record the experience and knowledge gained and learned on the way of software development and study. Interested partners can pay attention to the blogger! Maybe a person walking alone can walk very fast, but a group of people walking together can go further! Let's learn from each other on the road o ...

Posted by whatever on Sun, 01 May 2022 15:24:57 +0300

Introduction to Bootstrap, CSS style [grid system]

WWW: What,Why,Where What:Bootstrap is a front-end development framework. Simply put, it is to encapsulate the effects written by others. Bootstrap is a responsive front-end framework developed by the Twitter team in 2011 to facilitate the maintenance of PC and mobile terminals.Front end framework for rapid development of Web applications and ...

Posted by arkleyjoe on Fri, 29 Apr 2022 14:22:03 +0300

Chapter VIII summary of exception handling

catalogue 1, Exception overview 2, Classification of anomalies 1. System Error - Error 2. Exception - exception (1) . runtime exception (2) . non runtime exception 3, Capture and handle exceptions 1,try...catch code block 2. finally code block 4, Throw exception in method 1. Throw an exception using the throws keyword 2. Throw an ex ...

Posted by MysticalCodex on Thu, 28 Apr 2022 22:48:11 +0300

javaWeb_ Filters and listeners

1, Filter     1. summary The Filter is one of the three major components of Java Web (servlet, Listener and Filter). In fact, the Filter is a Filter for web resources   2, Common configuration item urlPatterns ① match with specified resources. For example "/ index.jsp" ② match with directory. For example "/ servlet ...

Posted by Firestorm ZERO on Sun, 24 Apr 2022 16:32:50 +0300

Detailed explanation of XML (degree to be mastered in java) < 2 >: dom4j parsing of XML parsing

Before XML parsing, let's ask the reader a small question: when using setter and getter methods, is the property value set and obtained the same as the value when we construct the object directly? This question is very important because there are many bug s here. public class Student{ private String name; public Student(String name){ ...

Posted by danc81 on Sat, 23 Apr 2022 16:45:57 +0300

Community property management system based on springboot+vue

Project background With the rapid development of science and technology, all walks of life are trying to integrate with modern advanced technology and improve their own advantages through scientific and technological means; Of course, the community property management system cannot be excluded. With the continuous maturity of network technolog ...

Posted by ErnesTo on Mon, 18 Apr 2022 08:20:12 +0300

Java abstract class interface internal class (detailed knowledge point)

👨‍💻 Hello everyone, I'm a small train ~ ~, a sophomore in school🛳️ Personal homepage: Dudu's little train blog📗 Series column: This article is written in java from 0 to 1 special column✉️ If there are mistakes in the knowledge points of the article, please correct them! Study with you and make progress together 🎈🔥 If you think the blog ...

Posted by jarosciak on Mon, 18 Apr 2022 03:18:25 +0300

Blue Bridge Cup template

Blue Bridge Cup 1, Grammar 1. String input one by one Enter directly into the array toCharArray() //array char[][] map=new char[10][10]; String temp[] = { "UDDLUULRUL", "UURLLLRRRU", "RRUURLDLRD", "RUDDDDUUUU", "URUDLLRRUU", "DURLRLDLRL", "ULLURLLRDU", "RDLULLRDDD", "UUDDUDUDLL", "ULRDLUURRR" }; for (int i = 0; i < 10; i+ ...

Posted by bms231 on Sun, 17 Apr 2022 05:12:46 +0300

JavaWeb domain object & EL expression & JSTL

catalogue I. domain object 1. What is scope? 2. Four domain objects 2, EL 1. Why do I need EL 2. What is EL 3. Functions of EL 4. EL syntax 5. Characteristics of EL 🔘 Automatic conversion type 🔘 Easy to use 6. EL variable attribute range name 7. Get the data in the object set 3, JSTL 1. Why use JSTL? 2. What is JSTL? 3. Steps ...

Posted by gregmiller on Fri, 15 Apr 2022 19:19:50 +0300

APM flight control learning notes - automatic landing in one minute in automatic mode

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it Article catalogue preface1, Introduction to automatic mode2, Add automatic landing function 1. Calling logic of flight control main loop2. Function additionsummary preface APM ...

Posted by andrewholway on Fri, 15 Apr 2022 14:36:05 +0300