1. > method
Two cases
returns the type of the return value.
public String color;
// > return value.
//return > no return value.
al.run();
// >:
Give an example
public class AutoLion {
// > attributefile > calls another method in one method.
public String info(){
return “ > callStudent“b( ) > callb( )
}
2.Student“a( ) > callTeacher“b()
}
Example: the student method calls the teacher method.
6.“
TestCell > charging.…”);
}
}
public class CellTest {
public static void main(String[] args) {
Cell nanfu=new C...
#—————————#—-cmdCommand line to connect to MySql———
cd C:\Program Files\MySQL\MySQL Server 5.5\bin
# Start MySQL servernet start mysql
# Close the MySQL server.net stop mysql
# Enter the MySQL command line.
mysql -h localhost -u root -p
#—————————
#—-MySqlUser management —
#To change the password: first, under DOS, enter the bin directory of the MySQL installation path, then type the following command:
mysqladmin -ur...
In some cases, you need to incorporate the jar package that your project depends on into your own jar package, which we call fat-jar. The method I use requires shadow plug-in:
The following example shows you typing mybatis into my jar package and changing the package name of mybatis from org. apache. ibatis to my. org. apache. ibatis.
This example is not a complete build.gradle file. Except for relocate, all the others are necessary. Relocate: modify the dependent package name when merging packages. If it is not necessary, you can ignore the relocate line.
plugins {
id 'com.github.joh...
MySQLDatabase optimization can be considered from the following aspects:
SQLStatement optimization
Database parameter configuration
Database architecture
Hardware upgrade
First, SQL statement optimization.
1、Open MySQL database slow query
Modify the MySQL configuration file my.cnf to add the following:
After the modification is completed, restart MySQL and execute the following statement to see if the modification is effective.
2、UsemysqldumpslowCommand narrowing
Most visited5individualSQLSentence
mysqldumpslow -s c -t 5 /usr/local/mysql/data/slow-query.log
The most recordset i...
0 – Download installation package
Recommended to Tsinghua mirror download. I chose Anaconda3-5.1.0-Linux-x86_64.sh.
1 – Install Anaconda
Then switch to the installation package directory, execute the following commands, and press enter or enter yes all the time.
bash Anaconda3-5.1.0-Linux-x86_64.sh
2 – Test whether Anaconda is installed successfully.
Input the following command, the following figure shows that the installation is successful.
conda list
3 – Reference material
https://www.cnblogs.com/gaofighting/p/8799169.html
...
Manually installing Docker on each machine is painful for clustered servers, but there’s the Docker Machine, one of the three Dockers.
Address: https://www.cnblogs.com/CKExp/p/9552272.html
1. Introduction of Docker Machine
The tool has been around for quite some time, Docker Machine official introduction: https://docs.docker.com/v1.13/machine/overview/ in my understanding is a control department master landing.The next batch of people is like this graph, facing different servers, cloud, virtual machine, local host and so on. Bulk installation is done through Docker ...
In the development of embedded system, the main programming languages used at present are C and assembly. C++ has the corresponding compiler, but it is still less used. In larger embedded software, such as OS, most of the code is written in C, mainly because of the C language structure comparisonGood, easy for people to understand, and there are plenty of supporting libraries. Nevertheless, assembly language is still used in many places, such as initialization of hardware system at boot time, including setting CPU status, interrupt enabling, frequency setting, RAM control parameters and initi...
After packaging, there will usually be copy jar files.
First define your task in the build.gradle file:
task myCopy{
println “some copy code…”
}
build.finalizedBy(myCopy)
So after the build, myCopy will be executed, or if you want to execute your mycopy after other tasks, just change the red part.
