use eclipse
1. The first step to download: The download address is: https://www.eclipse.org/downloads/ .
2. Installation: Click Install and follow the steps to finish
3. After the installation is complete, when we open the software, such a page will pop up, just cancel it
4. Click file, click the first option new, and then select java project (if you don't see it, it may be in other)
5. Create
6. Click on the dudu we created to create a new class
7. Open the created duduk and use it normally
