For some Java examples may be only a single file, not a complete Java project, so how do you want to run a single Java file, for example with IDEA.
My environment:
- IDEA 2017.3.2
- jdk 1.8.0.73
Steps:
1. Install jdk environment, the current version of jdk1.7,1.8 will automatically configure the environment variables
2. Open an existing java folder where the file or create a java project, dragged into a single file
3. If it is an existing folder, right - the root - Set Source Directory
5. In the Explorer window, select a single java file, right click and choose Run xxx.main
Other: If you run prompted to set outpath, set in the project setting outpath, set the folder \ out
