[Deep thinking] How should date types be used in JDK8?
Prior to JDK8, we used three main classes for processing date and time, Date, SimpleDateFormat, and Calendar.
These three classes have some problems when they are used more or less, such as SimpleDateFormat is not thread safe.
For example, the months Date and Calendar get are from 0 to 11, not from 1 to ...
Posted by webpals on Thu, 11 Jun 2020 18:59:37 -0700
Technology sharing | review MySQL's MTS
Author: Hong bin
The person in charge and technical service director of akerson South District, MySQL ace, is good at database architecture planning, fault diagnosis, performance optimization analysis, with rich practical experience, helping customers in various industries to solve MySQL technical problems, and providing overall MySQL solutio ...
Posted by rurouni on Thu, 11 Jun 2020 01:26:48 -0700
A seemingly usable binary serialization help class
This is only a helper method help class, which can help small partners to write binary serialization efficiency. The code is also in the past
Before I start, I need to say that if it's not necessary, don't use binary serialization. Because it's hard to achieve version compatibility, if you write w ...
Posted by void_function on Thu, 11 Jun 2020 01:15:48 -0700
What does jquery do--Lebyte Front End
JQuery
primary coverage
Jquery Object
JQuery is a set of multi-browser compatible javascript script libraries. The core idea is to write less and do more. Using jQuery will greatly improve the efficiency of writing javascript code, help developers save a lot of work, and make the code more elegant and robust, "like a tiger with wings.&qu ...
Posted by Bennettman on Wed, 10 Jun 2020 10:13:04 -0700
BFTRP algorithm
1, Let's start with a question
Looking for the k-th small value in a disordered array?
Many people use big top heap as the first solution, and then poll k is the answer, but the time complexity is O (nlogn). Is there an O (n) algorithm? The answer is yes, our BFTRP algorithm
2, Bedding
Here we ne ...
Posted by Mistat2000 on Mon, 08 Jun 2020 22:22:38 -0700
Minimalist tutorial on basic knowledge of field programmer
Bowen catalog
Write before
text
FIFO in GA/ASIC
Design of synchronous FIFO
Reference material
Make a friend
Write before
Personal Blog Home Page
Note: Learn to communicate!
text
FIFO in GA/ASIC
How FIFO buffers are used to transfer data and across clock domains
The abbreviation FIFO s ...
Posted by moty66 on Sun, 07 Jun 2020 18:50:08 -0700
Database security and transaction operation
Database security and transaction operation
Article catalog
Database security and transaction operation
1, Purpose and requirements
2, Experiment content
1. Design the security mechanism so that the user Wang Ming can only find the staff of the financial department
2 design a role_Emp ", this ...
Posted by bbbaldie on Sun, 07 Jun 2020 03:19:54 -0700
Building vue mobile project from scratch to online
Let's see a wave of renderings
Initialize project
1. Installed on node.js Using the following command
npm install --g vue-cli
2. Under the directory where the project will be built
Vue init webpack myproject (project directory name)
All the way back here
In the middle, you can select ESLint to check the code style of the project. ...
Posted by zuhalter223 on Sun, 07 Jun 2020 01:05:45 -0700
cmake basic introduction (1)
cmake basic introduction (1)
Official help documents
CMake is a cross platform make.
CMakeLists.txt The brief introduction is as follows:
# Auto CMakeLists.txt: frame with cppunit use for lintcode/leetcode
# minimum cmake version
cmake_minimum_required(VERSION 3.7) # cmake minimum version ...
Posted by Cyberspace on Sun, 07 Jun 2020 00:39:06 -0700
STM32 uses DHT11 and outputs the results to a seven-segment digital tube (proteus simulation)
STM32 uses DHT11 and outputs the results to a seven-segment digital tube (proteus simulation)
Circuit diagram
Step 1: Test environment after DHT11 is powered on (wait for 1S after DHT11 is powered on to get over the unstable state during which no instructions can be sent)
Temperature and humidity dat ...
Posted by pikymx on Sat, 06 Jun 2020 19:37:09 -0700