The installation and use of java operating mechanism and IDEA

java operating mechanism

• Compiled

• Interpretive

  

IDEA installation and use

• IDEA官网：https：//www.jetbtains,com/

• Fool-style installer

• Click 64 bit click java

   

Use of IDEA

1. Click IDEA software

2. Click on the first line to enter the software

3. Select the java version, the environment is configured, the version is automatically selected, and the environment is not configured, you must manually select the path of java

4. Choose where to install the file

5. Start the project, for example: Hello world (choose the path where the project is installed, click the project name "Hello", go in and click the blue color src file, right-click the file, select New ---> java class ---> enter The project name is "hello". After entering, press Enter-> psvm-> Enter-> sout-> Enter-> click the second small green arrow next to it-> run)